{"id":6576,"date":"2021-07-11T23:12:39","date_gmt":"2021-07-11T23:12:39","guid":{"rendered":"http:\/\/helios.media.uoa.gr\/datajour\/?p=6576"},"modified":"2023-03-17T06:51:43","modified_gmt":"2023-03-17T06:51:43","slug":"astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites","status":"publish","type":"post","link":"https:\/\/calypso.media.uoa.gr\/datastories\/astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites\/","title":{"rendered":"Astrazeneca VS Pfizer: \u03a0\u03bf\u03b9\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03bf\u03b9 \u03c0\u03bf\u03bb\u03af\u03c4\u03b5\u03c2;"},"content":{"rendered":"\n<p>\u0388\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03bb\u03ad\u03bf\u03bd \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03b5\u03bd\u03ac\u03bc\u03b9\u03c3\u03b7 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03be\u03ad\u03c3\u03c0\u03b1\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03bd\u03b4\u03b7\u03bc\u03af\u03b1\u03c2, \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03b1, \u03b7 \u03b1\u03bd\u03bf\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b1\u03b3\u03ad\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bd\u03ad\u03b1 \u03b5\u03ba\u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03c1\u03bf\u03c5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03cc \u03bb\u03b5\u03be\u03b9\u03bb\u03cc\u03b3\u03b9\u03bf \u03cc\u03bb\u03c9\u03bd. \u03a3\u03c4\u03b7\u03bd \u0395\u03bb\u03bb\u03ac\u03b4\u03b1, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 <a href=\"https:\/\/www.thetoc.gr\/koinwnia\/article\/ta-pososta-emboliasmou-ana-ilikiaki-omada\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u03ad\u03c7\u03b5\u03b9 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03bf 45% \u03c4\u03bf\u03c5 \u03b3\u03b5\u03bd\u03b9\u03ba\u03bf\u03cd \u03c0\u03bb\u03b7\u03b8\u03c5\u03c3\u03bc\u03bf\u03cd<\/a>, \u03c7\u03c9\u03c1\u03af\u03c2 \u03cc\u03bc\u03c9\u03c2 \u03b1\u03c5\u03c4\u03cc \u03bd\u03b1 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03bc\u03b5\u03c1\u03af\u03b4\u03b1 \u03c0\u03bf\u03bb\u03b9\u03c4\u03ce\u03bd \u03b4\u03b5\u03bd \u03b5\u03be\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03b5\u03af \u03bd\u03b1 \u03b4\u03c5\u03c3\u03c0\u03b9\u03c3\u03c4\u03b5\u03af \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b3\u03ba\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ba\u03bf\u03cd \u03c3\u03c5\u03bd\u03cc\u03bb\u03bf\u03c5.&nbsp;<\/p>\n\n\n\n<p>\u038e\u03c3\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc 1000 tweets \u03c4\u03bf \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 (3-11 \u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5), \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b1 \u03bc\u03ad\u03c3\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 hashtags #\u03a6\u03ac\u03b9\u03b6\u03b5\u03c1 \u03ba\u03b1\u03b9 #\u0391\u03c3\u03c4\u03c1\u03b1\u0396\u03ad\u03bd\u03b5\u03ba\u03b1, \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03ba\u03b1\u03bd\u03b5\u03af\u03c2 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b1\u03bd\u03b1\u03c1\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03c4\u03b7\u03c2 AstraZeneca \u03ad\u03b3\u03b9\u03bd\u03b1\u03bd \u03c4\u03b7\u03bd \u03a4\u03c1\u03af\u03c4\u03b7 6 \u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5, \u03c0\u03c1\u03ac\u03b3\u03bc\u03b1 \u03b1\u03c0\u03bf\u03bb\u03cd\u03c4\u03c9\u03c2 \u03b1\u03bd\u03b1\u03bc\u03b5\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf \u03ba\u03b1\u03b8\u03ce\u03c2 \u03c4\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7 \u03bc\u03ad\u03c1\u03b1 \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03ac\u03c6\u03b7\u03ba\u03b5 \u03b1\u03bb\u03bc\u03b1\u03c4\u03ce\u03b4\u03b7\u03c2 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03c1\u03bf\u03c5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd, \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03b1\u03c1\u03ba\u03b5\u03c4\u03ad\u03c2 \u03b5\u03b2\u03b4\u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u201c\u03c7\u03b1\u03bc\u03b7\u03bb\u03ce\u03bd \u03c0\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd\u201d.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/1_astrazeneca_tweets_by_day.png\" alt=\"\" class=\"wp-image-6671\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 1: \u039f \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Astrazeneca (3-11 \u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5).<\/figcaption><\/figure><\/div>\n\n\n<p>\u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03ac\u03bb\u03bb\u03b7, \u03b7 \u03b7\u03bc\u03ad\u03c1\u03b1 \u03bc\u03b5 \u03c4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c0\u03bf\u03c3\u03c4 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03c4\u03b7\u03c2 Pfizer \u03ae\u03c4\u03b1\u03bd \u03b7 9\u03b7 \u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5 (\u03a0\u03b1\u03c1\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae). \u0391\u03c5\u03c4\u03ae \u03b7 \u03ac\u03bd\u03bf\u03b4\u03bf\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03b5\u03cd\u03ba\u03bf\u03bb\u03b1 \u03bd\u03b1 \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03c5\u03c4\u03b5\u03af, \u03b4\u03b9\u03cc\u03c4\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03a0\u03b1\u03c1\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd \u03ba\u03c1\u03bf\u03c5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c3\u03b7\u03bc\u03b5\u03af\u03c9\u03c3\u03b5 \u03bd\u03ad\u03bf \u03c1\u03b5\u03ba\u03cc\u03c1 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u0399\u03bf\u03cd\u03bb\u03b9\u03bf, \u03be\u03b5\u03c0\u03b5\u03c1\u03bd\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b9\u03c2 2.300 \u03bc\u03bf\u03bb\u03cd\u03bd\u03c3\u03b5\u03b9\u03c2.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/2_pfizer_tweets_by_day-1.png\" alt=\"\" class=\"wp-image-6673\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 2: \u039f \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Pfizer (3-11 \u0399\u03bf\u03c5\u03bb\u03af\u03bf\u03c5).<\/figcaption><\/figure><\/div>\n\n\n<p>\u039c\u03ac\u03bb\u03b9\u03c3\u03c4\u03b1, \u03cc\u03c0\u03c9\u03c2 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b3\u03c1\u03b1\u03c6\u03ae\u03bc\u03b1\u03c4\u03b1, \u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd tweets \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03b4\u03cd\u03bf hashtags \u03c0\u03bf\u03c5 \u03bc\u03b5\u03bb\u03b5\u03c4\u03ae\u03b8\u03b7\u03ba\u03b1\u03bd, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c5\u03be\u03b7\u03bc\u03ad\u03bd\u03bf\u03c2 \u03c4\u03b1 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b1 24\u03ce\u03c1\u03b1.&nbsp;<\/p>\n\n\n\n<p>\u0397 \u03b1\u03bd\u03bf\u03b4\u03b9\u03ba\u03ae \u03b1\u03c5\u03c4\u03ae \u03c4\u03ac\u03c3\u03b7 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03bf\u03b4\u03bf\u03b8\u03b5\u03af \u03c3\u03c4\u03b9\u03c2 \u03ad\u03bd\u03c4\u03bf\u03bd\u03b5\u03c2 \u03c3\u03c5\u03b6\u03b7\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03ac\u03bd\u03bf\u03b9\u03be\u03b1\u03bd \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03b5\u03b2\u03b4\u03bf\u03bc\u03ac\u03b4\u03b1, \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03bb\u03b5\u03c5\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03b5\u03c4\u03ac\u03c1\u03c4\u03bf\u03c5 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 COVID-19 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03b5\u03c0\u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03bf \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03bc\u03cc \u03c4\u03c9\u03bd \u03bc\u03bf\u03bb\u03cd\u03bd\u03c3\u03b5\u03c9\u03bd \u03b1\u03c0\u03cc \u03ba\u03bf\u03c1\u03c9\u03bd\u03bf\u03ca\u03cc. \u03a3\u03c4\u03b9\u03c2 \u03c3\u03c5\u03b6\u03b7\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2, \u03c4\u03cc\u03c3\u03bf \u03c3\u03b5 \u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03cc \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03b5\u03b8\u03bd\u03ad\u03c2 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf, \u03ba\u03c5\u03c1\u03b9\u03b1\u03c1\u03c7\u03b5\u03af \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b9\u03bd\u03b4\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03b1\u03be\u03b7\u03c2 (\u03c4\u03b7\u03c2 \u03bb\u03b5\u03b3\u03cc\u03bc\u03b5\u03bd\u03b7\u03c2 \u201c<a href=\"https:\/\/www.lifo.gr\/now\/greece\/metallaxi-delta-se-poies-periohes-entopizetai-stin-kriti-ta-perissotera-kroysmata\" target=\"_blank\" rel=\"noreferrer noopener\">\u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03b1\u03be\u03b7\u03c2 \u0394\u03ad\u03bb\u03c4\u03b1<\/a>\u201d), \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03b8\u03bf\u03c1\u03c5\u03b2\u03ae\u03c3\u03b5\u03b9 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03bf\u03b3\u03bd\u03ce\u03bc\u03bf\u03bd\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03bb\u03af\u03c4\u03b5\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03ae\u03c2 \u03c4\u03b7\u03c2.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-flourish wp-block-embed-flourish\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" title=\"Interactive or visual content\" src=\"https:\/\/flo.uri.sh\/visualisation\/6707734\/embed#?secret=kGVlxvZzyd\" data-secret=\"kGVlxvZzyd\" frameborder=\"0\" scrolling=\"no\" height=\"575\" width=\"500\"><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 3: \u039f\u03b9 10 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b1 tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Astrazeneca.<\/figcaption><\/figure>\n\n\n\n<p>\u03a3\u03c4\u03c1\u03ad\u03c6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 \u03c3\u03c5\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c3\u03c4\u03bf Twitter \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf AstraZeneca, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bc\u03c6\u03b1\u03bd\u03ad\u03c2 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03c3\u03c5\u03c7\u03bd\u03ac \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03cc\u03c0\u03c9\u03c2 \u201c\u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b1\u03b3\u03b1\u03b6\u03b9\u03ac\u201d, \u201c\u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03cc\u03c3\u03b7\u201d, \u201c\u03b1\u03c3\u03c4\u03c1\u03b1\u03b6\u03ad\u03bd\u03b5\u03ba\u03b1\u201d, \u201c\u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9\u201d \u03ba\u03b1\u03b9 \u201c\u03b1\u03bd\u03b5\u03bc\u03b2\u03bf\u03bb\u03af\u03b1\u03c3\u03c4\u03bf\u03b9\u201d, \u03ac\u03bb\u03bb\u03bf\u03c4\u03b5 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c3\u03b7\u03bc\u03ac\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03ba\u03c1\u03b9\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b1\u03bd\u03b4\u03b7\u03bc\u03af\u03b1 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03bf\u03c4\u03b5 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03c1\u03bf\u03bb\u03ac\u03c1\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03bd\u03ad\u03b5\u03c2 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b1 \u03c0\u03bf\u03c5 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03b7 \u03ba\u03c5\u03b2\u03ad\u03c1\u03bd\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c7\u03b1\u03b9\u03c4\u03af\u03c3\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03ba\u03cd\u03bc\u03b1.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/3_astrazeneca_wordcloud-1024x514.png\" alt=\"\" class=\"wp-image-6674\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 4: \u03a3\u03cd\u03bd\u03bd\u03b5\u03c6\u03bf \u03bb\u03ad\u03be\u03b5\u03c9\u03bd (wordcloud) \u03b3\u03b9\u03b1 \u03c4\u03bf Astrazeneca.<\/figcaption><\/figure><\/div>\n\n\n<p>\u03a4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c3\u03c4\u03b9\u03b3\u03bc\u03ae, \u03c4\u03b7\u03bd \u03b1\u03bd\u03b7\u03c3\u03c5\u03c7\u03af\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03b1\u03be\u03b7 \u0394\u03ad\u03bb\u03c4\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ba\u03bf\u03cd \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03bc\u03c0\u03c1\u03ad\u03bb\u03b1 \u03c4\u03bf\u03c5 hashtag #\u03a6\u03ac\u03b9\u03b6\u03b5\u03c1. \u0397 \u03c3\u03c5\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03b5\u03ba\u03b5\u03af \u03b4\u03b9\u03b1\u03c1\u03b8\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03bd\u03ad\u03b1 \u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03b1\u03be\u03b7 \u03c4\u03bf\u03c5 \u03b9\u03bf\u03cd, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03bd \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc \u03c4\u03c9\u03bd \u03b4\u03cc\u03c3\u03b5\u03c9\u03bd \u03c4\u03bf\u03c5 \u03b5\u03bc\u03b2\u03bf\u03bb\u03af\u03bf\u03c5. \u0392\u03ad\u03b2\u03b1\u03b9\u03b1, \u03b1\u03c5\u03c4\u03cc \u03b4\u03b5 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03c0\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 Pfizer \u03b4\u03b5\u03bd \u03b1\u03c0\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c4\u03c1\u03bf\u03bb-\u03c0\u03bf\u03c3\u03c4, \u03c4\u03b1 \u03bf\u03c0\u03bf\u03af\u03b1 \u03bf\u03cd\u03c4\u03c9\u03c2 \u03ae \u03ac\u03bb\u03bb\u03c9\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03b3\u03bd\u03ce\u03c1\u03b9\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b1\u03c2.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/4_pfizer_wordcloud-1024x514.png\" alt=\"\" class=\"wp-image-6675\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 5: \u03a3\u03cd\u03bd\u03bd\u03b5\u03c6\u03bf \u03bb\u03ad\u03be\u03b5\u03c9\u03bd (wordcloud) \u03b3\u03b9\u03b1 \u03c4\u03bf Pfizer.<\/figcaption><\/figure><\/div>\n\n\n<p>H \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03bb\u03ad\u03be\u03b5\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03be\u03b5\u03ba\u03ac\u03b8\u03b1\u03c1\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03bf \u03b3\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1, \u03cc\u03c0\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03c4\u03ac\u03c3\u03c3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bf\u03b9 \u03b4\u03ad\u03ba\u03b1 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b3\u03c1\u03ac\u03c6\u03c4\u03b7\u03ba\u03b1\u03bd \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf hashtag #\u03a6\u03ac\u03b9\u03b6\u03b5\u03c1.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-wp-embed is-provider-flourish wp-block-embed-flourish\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" title=\"Interactive or visual content\" src=\"https:\/\/flo.uri.sh\/visualisation\/6708161\/embed#?secret=nmI63hQoxF\" data-secret=\"nmI63hQoxF\" frameborder=\"0\" scrolling=\"no\" height=\"575\" width=\"500\"><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 6: \u039f\u03b9 10 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ad\u03c2 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03c3\u03c4\u03b1 tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Pfizer.<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u03a3\u03c5\u03bd\u03b1\u03b9\u03c3\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd tweets<\/h4>\n\n\n\n<p>\u03a0\u03ad\u03c1\u03b1, \u03cc\u03bc\u03c9\u03c2, \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03bf\u03c5\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bd \u03bf\u03b9 \u03bb\u03ac\u03c4\u03c1\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 Twitter, \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03bd \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b7 \u03c3\u03c5\u03bd\u03b1\u03b9\u03c3\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03bb\u03ad\u03be\u03b5\u03c9\u03bd. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03b2\u03b1\u03b8\u03bc\u03cc \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf AstraZeneca, \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 (\u03c0\u03c1\u03ac\u03c3\u03b9\u03bd\u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae) \u03b5\u03c0\u03b9\u03ba\u03c1\u03b1\u03c4\u03b5\u03af \u03ba\u03b1\u03b8\u2019\u03cc\u03bb\u03b7 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c7\u03c1\u03bf\u03bd\u03b9\u03ba\u03bf\u03cd \u03b4\u03b9\u03b1\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03bb\u03b5\u03c4\u03ae\u03b8\u03b7\u03ba\u03b5. \u039c\u03ac\u03bb\u03b9\u03c3\u03c4\u03b1, \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Pfizer, \u03bc\u03b5 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b1\u03c5\u03be\u03bf\u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c1\u03c7\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c4\u03ad\u03bb\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03b2\u03b4\u03bf\u03bc\u03ac\u03b4\u03b1\u03c2.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/5_astrazeneca_positive_negative.png\" alt=\"\" class=\"wp-image-6677\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 7: \u0392\u03b1\u03b8\u03bc\u03cc\u03c2 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 (\u03c0\u03c1\u03ac\u03c3\u03b9\u03bd\u03bf) \u03ba\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 (\u03ba\u03cc\u03ba\u03ba\u03b9\u03bd\u03bf) \u03c3\u03c4\u03b1 tweets \u03b3\u03b9\u03b1 Astrazeneca.<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/7_pfizer_positive_negative-1.png\" alt=\"\" class=\"wp-image-6680\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 8: \u0392\u03b1\u03b8\u03bc\u03cc\u03c2 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 (\u03c0\u03c1\u03ac\u03c3\u03b9\u03bd\u03bf) \u03ba\u03b1\u03b9 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 (\u03ba\u03cc\u03ba\u03ba\u03b9\u03bd\u03bf) \u03c3\u03c4\u03b1 tweets \u03b3\u03b9\u03b1 Pfizer.<\/figcaption><\/figure><\/div>\n\n\n<p>\u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b7 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03b3\u03c1\u03b1\u03c6\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03ad\u03b3\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03cc\u03c4\u03b9 \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf AstraZeneca \u03b2\u03c1\u03af\u03c3\u03ba\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf 0,4 \u03c4\u03b9\u03c2 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b5\u03c2 \u03bc\u03ad\u03c1\u03b5\u03c2, \u03c3\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf Pfizer \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03b6\u03b5\u03b9 \u03bc\u03ad\u03b3\u03b9\u03c3\u03c4\u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c3\u03c4\u03bf 0,6. \u038c\u03bc\u03c9\u03c2, \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03b4\u03cd\u03bf hashtags \u03bf \u03b2\u03b1\u03b8\u03bc\u03cc\u03c2 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c2, \u03c0\u03c1\u03ac\u03b3\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03af\u03c3\u03c9\u03c2 \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03ad\u03c7\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03bc\u03c6\u03b9\u03b2\u03bf\u03bb\u03af\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b5\u03b9\u03bf\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03c9\u03bd \u03c0\u03bf\u03bb\u03b9\u03c4\u03ce\u03bd \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b3\u03ba\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd.&nbsp;<\/p>\n\n\n\n<p>\u0395\u03ba\u03c4\u03cc\u03c2 \u03b1\u03c5\u03c4\u03bf\u03cd, \u03ad\u03bd\u03b1 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03bf\u03be\u03b1 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03b2\u03b1\u03b8\u03bc\u03cc\u03c2 \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 Twitter \u03b1\u03c0\u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c3\u03c4\u03bf \u03b5\u03ba\u03ac\u03c3\u03c4\u03bf\u03c4\u03b5 \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf. \u0395\u03b9\u03b4\u03b9\u03ba\u03cc\u03c4\u03b5\u03c1\u03b1, \u03c3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 AstraZeneca \u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae trust (\u03bc\u03c0\u03bb\u03b5 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae) \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03bc\u03ad\u03c3\u03bf \u03cc\u03c1\u03bf \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf 0,5, \u03b5\u03bd \u03b1\u03bd\u03c4\u03b9\u03b8\u03ad\u03c3\u03b5\u03b9 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 Pfizer \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03bf\u03bd\u03af\u03bc\u03c9\u03c2 \u03ba\u03b1\u03b8\u03b7\u03bb\u03c9\u03bc\u03ad\u03bd\u03b7 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf 0,3.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/6_astrazeneca_fear_trust.png\" alt=\"\" class=\"wp-image-6686\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 9: \u0395\u03ba\u03b4\u03ae\u03bb\u03c9\u03c3\u03b7 \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7\u03c2 (\u03bc\u03c0\u03bb\u03b5) \u03ba\u03b1\u03b9 \u03c6\u03cc\u03b2\u03bf\u03c5 (\u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03bf) \u03b3\u03b9\u03b1 \u03c4\u03bf Astrazeneca.<\/figcaption><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"http:\/\/helios.media.uoa.gr\/datajour\/wp-content\/uploads\/2021\/07\/8_pfizer_fear_trust.png\" alt=\"\" class=\"wp-image-6688\"\/><figcaption class=\"wp-element-caption\">\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 10: \u0395\u03ba\u03b4\u03ae\u03bb\u03c9\u03c3\u03b7 \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7\u03c2 (\u03bc\u03c0\u03bb\u03b5) \u03ba\u03b1\u03b9 \u03c6\u03cc\u03b2\u03bf\u03c5 (\u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03bf) \u03b3\u03b9\u03b1 \u03c4\u03bf Pfizer.<\/figcaption><\/figure><\/div>\n\n\n<p>\u0397 \u03c0\u03b1\u03c1\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03b1\u03c3\u03c6\u03b1\u03bb\u03ce\u03c2 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03ad\u03ba\u03c0\u03bb\u03b7\u03be\u03b7 \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03c1\u03ce\u03c4\u03b7 \u03b1\u03bd\u03ac\u03b3\u03bd\u03c9\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd, \u03b5\u03b9\u03b4\u03b9\u03ba\u03ac \u03b1\u03bd \u03bb\u03ac\u03b2\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2 \u03c5\u03c0\u03cc\u03c8\u03b7 \u03c4\u03bf\u03c5 \u03cc\u03c4\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03b1\u03be\u03b9\u03cc\u03bb\u03bf\u03b3\u03bf\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd \u03c0\u03bf\u03bb\u03b9\u03c4\u03ce\u03bd \u03b5\u03c0\u03ad\u03bb\u03b5\u03be\u03b5 \u03bd\u03b1 \u03b1\u03ba\u03c5\u03c1\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b1 \u03c1\u03b1\u03bd\u03c4\u03b5\u03b2\u03bf\u03cd \u03c4\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03bc\u03cc \u03bc\u03b5 AstraZeneca, \u03bc\u03b5\u03c4\u03ac \u03c4\u03b9\u03c2 \u03b5\u03c0\u03af\u03c3\u03b7\u03bc\u03b5\u03c2 \u03b1\u03bd\u03b1\u03ba\u03bf\u03b9\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03cc\u03c4\u03b9 \u03b5\u03bd\u03b4\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b8\u03c1\u03bf\u03bc\u03b2\u03ce\u03c3\u03b5\u03b9\u03c2. \u03a0\u03b1\u03c1\u03ac \u03bb\u03bf\u03b9\u03c0\u03cc\u03bd \u03c4\u03b1 \u03cc\u03c0\u03bf\u03b9\u03b1 \u201c\u03ba\u03b1\u03c4\u03b7\u03b3\u03bf\u03c1\u03ce\u201d \u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03c0\u03bf\u03b4\u03bf\u03b8\u03b5\u03af \u03c3\u03c4\u03bf \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf, \u03bf\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2 \u03c4\u03bf\u03c5 Twitter \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c9\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03bf\u03c3\u03cd\u03bd\u03b7.&nbsp;<\/p>\n\n\n\n<p>\u03a4\u03b1\u03c5\u03c4\u03cc\u03c7\u03c1\u03bf\u03bd\u03b1, \u03b7 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b4\u03b9\u03b1\u03c0\u03af\u03c3\u03c4\u03c9\u03c3\u03b7 \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b5\u03b3\u03b5\u03af\u03c1\u03b5\u03b9 \u03bd\u03ad\u03b1 \u03b5\u03c1\u03c9\u03c4\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac, \u03b1\u03bd \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2 \u03c4\u03bf\u03bd \u03c6\u03cc\u03b2\u03bf (\u03ba\u03af\u03c4\u03c1\u03b9\u03bd\u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae) \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b1 tweets \u03b3\u03b9\u03b1 \u03c4\u03bf \u03ba\u03ac\u03b8\u03b5 \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf. \u039c\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03bf \u03c6\u03cc\u03b2\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf AstraZeneca \u03c0\u03bf\u03c5 \u03b8\u03b5\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03ac \u03b1\u03bd\u03b1\u03bc\u03b5\u03bd\u03cc\u03c4\u03b1\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2, \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b7\u03bd \u03b5\u03b9\u03b4\u03b7\u03c3\u03b5\u03bf\u03b3\u03c1\u03b1\u03c6\u03af\u03b1 \u03c4\u03c9\u03bd \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03c9\u03bd \u03bc\u03b7\u03bd\u03ce\u03bd, \u03b5\u03bd \u03c4\u03ad\u03bb\u03b5\u03b9 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c9\u03c2 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03c0\u03b9\u03bf \u03c7\u03b1\u03bc\u03b7\u03bb\u03ac, \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7 \u03b5\u03b2\u03b4\u03bf\u03bc\u03ac\u03b4\u03b1.&nbsp;<\/p>\n\n\n\n<p>\u039c\u03b9\u03b1 \u03c0\u03b9\u03b8\u03b1\u03bd\u03ae \u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03c7\u03b1\u03bc\u03b7\u03bb\u03ce\u03bd \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03ce\u03bd \u03c6\u03cc\u03b2\u03bf\u03c5, \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03bf\u03c5 \u03cc\u03c4\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b7 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 \u03c3\u03c5\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03ba\u03bf\u03c1\u03c9\u03bd\u03bf\u03ca\u03cc \u03ad\u03c7\u03b5\u03b9 \u03be\u03b5\u03c6\u03cd\u03b3\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03b4\u03af\u03c0\u03bf\u03bb\u03bf \u03c4\u03bf\u03c5 \u03b5\u03ac\u03bd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf\u03c2 \u03bd\u03b1 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03ae \u03cc\u03c7\u03b9 \u03ba\u03b1\u03b9 \u03ad\u03c7\u03b5\u03b9 \u03bc\u03b5\u03c4\u03b1\u03c6\u03b5\u03c1\u03b8\u03b5\u03af \u03c3\u03b5 \u03bd\u03ad\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5\u03c2. \u039c\u03af\u03b1 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ad\u03c2, \u03b3\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c0\u03bf\u03c5 \u03ad\u03bb\u03b1\u03b2\u03b5 \u03c4\u03b9\u03c2 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b5\u03c2 \u03b5\u03b2\u03b4\u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03b7 \u03ba\u03c5\u03b2\u03ad\u03c1\u03bd\u03b7\u03c3\u03b7 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf \u03ac\u03bd\u03bf\u03b9\u03b3\u03bc\u03b1 \u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03b8\u03b1 \u03b4\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9.&nbsp;<\/p>\n\n\n\n<p>\u0391\u03c5\u03c4\u03cc, \u03ac\u03bb\u03bb\u03c9\u03c3\u03c4\u03b5, \u03b1\u03c0\u03bf\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1 \u03b4\u03b9\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 (bigrams) \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ad\u03ba\u03c5\u03c8\u03b1\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd tweets, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bf\u03b9 \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u201c\u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b1\u03b3\u03b1\u03b6\u03b9\u03ac\u201d \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03ba\u03bf\u03c1\u03c5\u03c6\u03ae \u03c4\u03b7\u03c2 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b7\u03c2 \u03bb\u03af\u03c3\u03c4\u03b1\u03c2. <\/p>\n\n\n\n<figure class=\"wp-block-embed-wordpress wp-block-embed is-type-wp-embed is-provider-flourish\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" title=\"Interactive or visual content\" src=\"https:\/\/flo.uri.sh\/visualisation\/6708638\/embed#?secret=vLKGPW5sEf\" data-secret=\"vLKGPW5sEf\" frameborder=\"0\" scrolling=\"no\" height=\"575\" width=\"500\"><\/iframe>\n<\/div><figcaption>\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 11: \u03a4\u03b1 10 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ac \u03b4\u03b9\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 (bigrams) \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf AstraZeneca.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-embed-wordpress wp-block-embed is-type-wp-embed is-provider-flourish\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" title=\"Interactive or visual content\" src=\"https:\/\/flo.uri.sh\/visualisation\/6709178\/embed#?secret=9QYg45s860\" data-secret=\"9QYg45s860\" frameborder=\"0\" scrolling=\"no\" height=\"575\" width=\"500\"><\/iframe>\n<\/div><figcaption>\u0393\u03c1\u03ac\u03c6\u03b7\u03bc\u03b1 12: \u03a4\u03b1 10 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ac \u03b4\u03b9\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 (bigrams) \u03b3\u03b9\u03b1 \u03c4\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf Pfizer.<\/figcaption><\/figure>\n\n\n\n<p>\u039f\u03b9 \u03c7\u03c1\u03ae\u03c3\u03c4\u03b5\u03c2, \u03bc\u03ac\u03bb\u03b9\u03c3\u03c4\u03b1, \u03c4\u03bf\u03c5 Twitter \u03ba\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b1 \u03b4\u03b9\u03ba\u03ac \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c7\u03cc\u03bb\u03b9\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03c5\u03b2\u03ad\u03c1\u03bd\u03b7\u03c3\u03b7\u03c2, \u03b5\u03c0\u03ad\u03bb\u03b5\u03be\u03b1\u03bd \u03c4\u03b7 \u03c7\u03b9\u03bf\u03c5\u03bc\u03bf\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03bf\u03b4\u03cc \u03b8\u03ad\u03bb\u03bf\u03bd\u03c4\u03b1\u03c2 \u03bd\u03b1 \u03c4\u03bf\u03bd\u03af\u03c3\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03b7 \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03b1\u03c4\u03af\u03b6\u03b5\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b7 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03c4\u03b7\u03c2, \u03c0\u03b1\u03c1\u03ac \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ad\u03bd\u03b1 \u03b1\u03c3\u03c6\u03b1\u03bb\u03ad\u03c2 \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03bf\u03bb\u03af\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u2019\u03b5\u03c0\u03ad\u03ba\u03c4\u03b1\u03c3\u03b7 \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b6\u03ae\u03c3\u03bf\u03c5\u03bd \u03bc\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03ac\u03bd\u03b5\u03c3\u03b7 \u03c4\u03bf \u03c6\u03b5\u03c4\u03b9\u03bd\u03cc \u03ba\u03b1\u03bb\u03bf\u03ba\u03b1\u03af\u03c1\u03b9.<\/p>\n\n\n\n<p><em>\u0397\u03bb\u03af\u03b1\u03c2 \u0396\u03c9\u03b3\u03c1\u03ac\u03c6\u03bf\u03c2<\/em><\/p>\n\n\n\n<p><strong>\u039c\u03b5\u03b8\u03bf\u03b4\u03bf\u03bb\u03bf\u03b3\u03af\u03b1<\/strong><br>\u0397 \u03c3\u03c5\u03bb\u03bb\u03bf\u03b3\u03ae \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ad\u03b3\u03b9\u03bd\u03b5 \u03bc\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 scraping \u03bc\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03b2\u03b9\u03b2\u03bb\u03b9\u03bf\u03b8\u03ae\u03ba\u03b7\u03c2 Beautiful Soup \u03c3\u03c4\u03b7\u03bd Python, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03bc\u03ad\u03c3\u03c9 Twitter \u03bc\u03b5 \u03c4\u03b1 hashtags #\u03a6\u03ac\u03b9\u03b6\u03b5\u03c1 \u03ba\u03b1\u03b9 #\u0391\u03c3\u03c4\u03c1\u03b1\u0396\u03ad\u03bd\u03b5\u03ba\u03b1. \u0397 \u03bf\u03c0\u03c4\u03b9\u03ba\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd \u03ad\u03b3\u03b9\u03bd\u03b5 \u03bc\u03ad\u03c3\u03c9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03bf\u03b9\u03c7\u03c9\u03bd \u03b2\u03b9\u03b2\u03bb\u03b9\u03bf\u03b8\u03b7\u03ba\u03ce\u03bd \u03c3\u03c4\u03b7\u03bd Python \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7 \u03b2\u03bf\u03ae\u03b8\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b1\u03c2 Flourish. \u039f \u03c0\u03bb\u03ae\u03c1\u03b7\u03c2 \u03ba\u03ce\u03b4\u03b9\u03ba\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03bf\u03c2 \u03c3\u03c4\u03bf <a href=\"https:\/\/github.com\/iliaszografos\/data_science_master\">Github<\/a>.<\/p>\n\n\n\n<p>\u03a0\u03b7\u03b3\u03ae \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1\u03c2: <a href=\"https:\/\/www.healthpharma.gr\/pharmacy\/pfizer-astrazeneca-apotelesmatika-ta-emvolia-se-dyo-metallaxeis\/\" target=\"_blank\" rel=\"noreferrer noopener\">healthpharma.gr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0388\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03bb\u03ad\u03bf\u03bd \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03b5\u03bd\u03ac\u03bc\u03b9\u03c3\u03b7 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03be\u03ad\u03c3\u03c0\u03b1\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03bd\u03b4\u03b7\u03bc\u03af\u03b1\u03c2, \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03b1, \u03b7 \u03b1\u03bd\u03bf\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b1\u03b3\u03ad\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bd\u03ad\u03b1 \u03b5\u03ba\u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03c1\u03bf\u03c5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03cc \u03bb\u03b5\u03be\u03b9\u03bb\u03cc\u03b3\u03b9\u03bf \u03cc\u03bb\u03c9\u03bd. \u03a3\u03c4\u03b7\u03bd \u0395\u03bb\u03bb\u03ac\u03b4\u03b1, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03bf 45% \u03c4\u03bf\u03c5 \u03b3\u03b5\u03bd\u03b9\u03ba\u03bf\u03cd \u03c0\u03bb\u03b7\u03b8\u03c5\u03c3\u03bc\u03bf\u03cd, \u03c7\u03c9\u03c1\u03af\u03c2 \u03cc\u03bc\u03c9\u03c2 \u03b1\u03c5\u03c4\u03cc \u03bd\u03b1 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03bc\u03b5\u03c1\u03af\u03b4\u03b1 \u03c0\u03bf\u03bb\u03b9\u03c4\u03ce\u03bd \u03b4\u03b5\u03bd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6611,"comment_status":"closed","ping_status":"open","sticky":false,"template":"single-wide.php","format":"standard","meta":{"_eb_attr":"","newspack_featured_image_position":"","newspack_post_subtitle":"","newspack_article_summary_title":"Overview:","newspack_article_summary":"","newspack_hide_updated_date":false,"footnotes":""},"categories":[13],"tags":[313,236],"ppma_author":[264],"class_list":["post-6576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-_health","tag-2021msc","tag-covid-19","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Astrazeneca VS Pfizer: \u03a0\u03bf\u03b9\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03bf\u03b9 \u03c0\u03bf\u03bb\u03af\u03c4\u03b5\u03c2; - Data Stories @ NewTech Lab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/calypso.media.uoa.gr\/datastories\/astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astrazeneca VS Pfizer: \u03a0\u03bf\u03b9\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03bf\u03b9 \u03c0\u03bf\u03bb\u03af\u03c4\u03b5\u03c2; - Data Stories @ NewTech Lab\" \/>\n<meta property=\"og:description\" content=\"\u0388\u03c7\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c0\u03bb\u03ad\u03bf\u03bd \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03c9\u03b8\u03b5\u03af \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03b5\u03bd\u03ac\u03bc\u03b9\u03c3\u03b7 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03be\u03ad\u03c3\u03c0\u03b1\u03c3\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03bd\u03b4\u03b7\u03bc\u03af\u03b1\u03c2, \u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03b1 \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03b1, \u03b7 \u03b1\u03bd\u03bf\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03b1\u03b3\u03ad\u03bb\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bd\u03ad\u03b1 \u03b5\u03ba\u03b8\u03b5\u03c4\u03b9\u03ba\u03ae \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03c1\u03bf\u03c5\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd \u03b2\u03c1\u03af\u03c3\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03cc \u03bb\u03b5\u03be\u03b9\u03bb\u03cc\u03b3\u03b9\u03bf \u03cc\u03bb\u03c9\u03bd. \u03a3\u03c4\u03b7\u03bd \u0395\u03bb\u03bb\u03ac\u03b4\u03b1, \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03b5\u03bc\u03b2\u03bf\u03bb\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u03c4\u03bf 45% \u03c4\u03bf\u03c5 \u03b3\u03b5\u03bd\u03b9\u03ba\u03bf\u03cd \u03c0\u03bb\u03b7\u03b8\u03c5\u03c3\u03bc\u03bf\u03cd, \u03c7\u03c9\u03c1\u03af\u03c2 \u03cc\u03bc\u03c9\u03c2 \u03b1\u03c5\u03c4\u03cc \u03bd\u03b1 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b7 \u03bc\u03b5\u03c1\u03af\u03b4\u03b1 \u03c0\u03bf\u03bb\u03b9\u03c4\u03ce\u03bd \u03b4\u03b5\u03bd [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/calypso.media.uoa.gr\/datastories\/astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites\/\" \/>\n<meta property=\"og:site_name\" content=\"Data Stories @ NewTech Lab\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/el-gr.facebook.com\/digital.media.uoa\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-11T23:12:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-03-17T06:51:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/calypso.media.uoa.gr\/datastories\/wp-content\/uploads\/2023\/03\/image-290.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1117\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u0397\u03bb\u03af\u03b1\u03c2 \u0396\u03c9\u03b3\u03c1\u03ac\u03c6\u03bf\u03c2\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/calypso.media.uoa.gr\/datastories\/astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/calypso.media.uoa.gr\/datastories\/astrazeneca-vs-pfizer-poio-emvolio-empistevontai-oi-polites\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/calypso.media.uoa.gr\/datastories\/#\/schema\/person\/51f74d8001c35bc839cc9c992cbc8b12\"},\"headline\":\"Astrazeneca VS Pfizer: \u03a0\u03bf\u03b9\u03bf \u03b5\u03bc\u03b2\u03cc\u03bb\u03b9\u03bf \u03b5\u03bc\u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03bf\u03b9 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