{"id":512,"date":"2026-08-09T14:21:12","date_gmt":"2026-08-09T07:21:12","guid":{"rendered":"https:\/\/dykhoa.com\/blog\/?p=512"},"modified":"2026-10-13T00:49:22","modified_gmt":"2026-10-12T17:49:22","slug":"tin-gia-vac-xin-covid19-va-y-dinh-tiem-chung","status":"publish","type":"post","link":"https:\/\/dykhoa.com\/blog\/tin-gia-vac-xin-covid19-va-y-dinh-tiem-chung\/","title":{"rendered":"Tin gi\u1ea3 v\u1eafc-xin Covid-19 l\u00e0m gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng: b\u00e0i h\u1ecdc t\u1eeb m\u1ed9t nghi\u00ean c\u1ee9u"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">B\u1ed1i c\u1ea3nh s\u1ef1 vi\u1ec7c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i n\u0103m 2020, th\u1ebf gi\u1edbi chu\u1ea9n b\u1ecb tri\u1ec3n khai v\u1eafc-xin Covid-19. Song song \u0111\u00f3, <a href=\"https:\/\/dykhoa.com\/blog\/vi-sao-tin-gia-suc-khoe-lan-nhanh-tren-mang-xa-hoi\/\" data-type=\"post\" data-id=\"187\">tin gi\u1ea3<\/a> v\u1ec1 v\u1eafc-xin lan tr\u00e0n tr\u00ean m\u1ea1ng x\u00e3 h\u1ed9i. Nhi\u1ec1u n\u1ed9i dung sai l\u1ec7ch tuy\u00ean b\u1ed1 v\u1eafc-xin g\u00e2y v\u00f4 sinh. M\u1ed9t s\u1ed1 n\u1ed9i dung kh\u00e1c g\u00e1n gh\u00e9p v\u1eafc-xin v\u1edbi thuy\u1ebft \u00e2m m\u01b0u vi m\u1ea1ch theo d\u00f5i. C\u00e1c n\u1ed9i dung n\u00e0y lan nhanh tr\u00ean Facebook v\u00e0 Twitter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc Oxford v\u00e0 \u0110\u1ea1i h\u1ecdc Cambridge quy\u1ebft \u0111\u1ecbnh \u0111o l\u01b0\u1eddng t\u00e1c \u0111\u1ed9ng th\u1ef1c s\u1ef1 c\u1ee7a tin gi\u1ea3. H\u1ecd kh\u00f4ng ch\u1ec9 m\u00f4 t\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng. H\u1ecd mu\u1ed1n l\u01b0\u1ee3ng h\u00f3a m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00e0nh vi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khung l\u00fd thuy\u1ebft \u00e1p d\u1ee5ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nghi\u00ean c\u1ee9u d\u1ef1a tr\u00ean logic c\u1ee7a Thuy\u1ebft h\u00e0nh vi c\u00f3 k\u1ebf ho\u1ea1ch (Theory of Planned Behavior). Theo l\u00fd thuy\u1ebft n\u00e0y, \u00fd \u0111\u1ecbnh h\u00e0nh vi l\u00e0 y\u1ebfu t\u1ed1 d\u1ef1 b\u00e1o g\u1ea7n nh\u1ea5t cho h\u00e0nh vi th\u1ef1c t\u1ebf. Th\u00e1i \u0111\u1ed9, chu\u1ea9n m\u1ef1c ch\u1ee7 quan v\u00e0 nh\u1eadn th\u1ee9c ki\u1ec3m so\u00e1t h\u00e0nh vi \u0111\u1ecbnh h\u00ecnh \u00fd \u0111\u1ecbnh \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tin gi\u1ea3 can thi\u1ec7p tr\u1ef1c ti\u1ebfp v\u00e0o th\u00e1i \u0111\u1ed9. Ng\u01b0\u1eddi ti\u1ebfp x\u00fac tin gi\u1ea3 c\u00f3 xu h\u01b0\u1edbng \u0111\u00e1nh gi\u00e1 v\u1eafc-xin k\u00e9m an to\u00e0n h\u01a1n. T\u1eeb \u0111\u00f3, \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng c\u1ee7a h\u1ecd gi\u1ea3m xu\u1ed1ng. C\u01a1 ch\u1ebf n\u00e0y gi\u1ea3i th\u00edch v\u00ec sao truy\u1ec1n th\u00f4ng sai l\u1ec7ch c\u00f3 th\u1ec3 chuy\u1ec3n h\u00f3a th\u00e0nh h\u00e0nh vi n\u00e9 tr\u00e1nh ti\u00eam ch\u1ee7ng trong th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf v\u00e0 ph\u00e1t hi\u1ec7n ch\u00ednh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Loomba v\u00e0 c\u1ed9ng s\u1ef1 (2021) th\u1ef1c hi\u1ec7n m\u1ed9t th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean c\u00f3 \u0111\u1ed1i ch\u1ee9ng (RCT) t\u1ea1i Anh v\u00e0 M\u1ef9. Ng\u01b0\u1eddi tham gia \u0111\u01b0\u1ee3c chia ng\u1eabu nhi\u00ean v\u00e0o hai nh\u00f3m. M\u1ed9t nh\u00f3m ti\u1ebfp x\u00fac th\u00f4ng tin sai l\u1ec7ch v\u1ec1 v\u1eafc-xin. Nh\u00f3m c\u00f2n l\u1ea1i ti\u1ebfp x\u00fac th\u00f4ng tin x\u00e1c th\u1ef1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 cho th\u1ea5y s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t. T\u1ea1i Anh, t\u1ef7 l\u1ec7 ng\u01b0\u1eddi &#8220;ch\u1eafc ch\u1eafn&#8221; ti\u00eam v\u1eafc-xin gi\u1ea3m 6,2 \u0111i\u1ec3m ph\u1ea7n tr\u0103m sau khi ti\u1ebfp x\u00fac tin gi\u1ea3. T\u1ea1i M\u1ef9, m\u1ee9c gi\u1ea3m l\u00e0 6,4 \u0111i\u1ec3m ph\u1ea7n tr\u0103m. \u0110\u00e2y l\u00e0 m\u1ee9c gi\u1ea3m c\u00f3 \u00fd ngh\u0129a th\u1ed1ng k\u00ea, kh\u00f4ng ph\u1ea3i dao \u0111\u1ed9ng ng\u1eabu nhi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nghi\u00ean c\u1ee9u c\u0169ng ghi nh\u1eadn m\u1ed9t \u0111i\u1ec3m quan tr\u1ecdng. M\u1ee9c gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng di\u1ec5n ra \u1edf c\u1ea3 nh\u00f3m ban \u0111\u1ea7u c\u00f3 th\u00e1i \u0111\u1ed9 t\u00edch c\u1ef1c v\u1edbi v\u1eafc-xin. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y tin gi\u1ea3 kh\u00f4ng ch\u1ec9 c\u1ee7ng c\u1ed1 th\u00e1i \u0111\u1ed9 nghi ng\u1edd s\u1eb5n c\u00f3. Tin gi\u1ea3 c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m lung lay c\u1ea3 nh\u1eefng ng\u01b0\u1eddi \u0111ang c\u00f3 xu h\u01b0\u1edbng \u1ee7ng h\u1ed9 ti\u00eam ch\u1ee7ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00e0i h\u1ecdc cho truy\u1ec1n th\u00f4ng khoa h\u1ecdc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Case study n\u00e0y \u0111\u01b0a ra ba b\u00e0i h\u1ecdc th\u1ef1c ti\u1ec5n cho ng\u01b0\u1eddi l\u00e0m <a href=\"https:\/\/dykhoa.com\/blog\/truyen-thong-khoa-hoc-va-truyen-thong-y-te-giong-khac-nhau\/\" data-type=\"post\" data-id=\"313\">truy\u1ec1n th\u00f4ng y t\u1ebf<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 nh\u1ea5t, th\u00f4ng tin x\u00e1c th\u1ef1c c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u01b0a ra tr\u01b0\u1edbc khi tin gi\u1ea3 k\u1ecbp lan r\u1ed9ng. Nghi\u00ean c\u1ee9u cho th\u1ea5y hi\u1ec7u \u1ee9ng c\u1ee7a tin gi\u1ea3 x\u1ea3y ra r\u1ea5t nhanh, ch\u1ec9 sau m\u1ed9t l\u1ea7n ti\u1ebfp x\u00fac ng\u1eafn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 hai, nh\u00f3m c\u00f3 th\u00e1i \u0111\u1ed9 trung l\u1eadp l\u00e0 nh\u00f3m d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng nh\u1ea5t. Chi\u1ebfn l\u01b0\u1ee3c truy\u1ec1n th\u00f4ng n\u00ean \u01b0u ti\u00ean ti\u1ebfp c\u1eadn nh\u00f3m n\u00e0y, thay v\u00ec ch\u1ec9 t\u1eadp trung thuy\u1ebft ph\u1ee5c nh\u00f3m ph\u1ea3n \u0111\u1ed1i v\u1eafc-xin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ee9 ba, c\u00e1c n\u1ec1n t\u1ea3ng m\u1ea1ng x\u00e3 h\u1ed9i c\u1ea7n c\u00f4ng c\u1ee5 g\u1eafn c\u1edd tin gi\u1ea3 theo th\u1eddi gian th\u1ef1c. B\u1ea3n th\u00e2n nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c nhi\u1ec1u t\u1ed5 ch\u1ee9c y t\u1ebf c\u00f4ng c\u1ed9ng, trong \u0111\u00f3 c\u00f3 Trung t\u00e2m V\u1eafc-xin Vaccine Confidence Project t\u1ea1i Tr\u01b0\u1eddng V\u1ec7 sinh v\u00e0 Y h\u1ecdc Nhi\u1ec7t \u0111\u1edbi London, s\u1eed d\u1ee5ng l\u00e0m c\u0103n c\u1ee9 khuy\u1ebfn ngh\u1ecb ch\u00ednh s\u00e1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u00f4i l\u1eddi gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p b\u1edfi Nguy\u1ec5n Ho\u00e0ng Anh Khoa (Dy Khoa), gi\u1ea3ng vi\u00ean Khoa Quan h\u1ec7 c\u00f4ng ch\u00fang v\u00e0 Truy\u1ec1n th\u00f4ng, Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc V\u0103n Lang, v\u00e0 l\u00e0 ng\u01b0\u1eddi t\u1ed1t nghi\u1ec7p Th\u1ea1c s\u0129 Truy\u1ec1n th\u00f4ng Khoa h\u1ecdc v\u00e0 Thu h\u00fat C\u00f4ng ch\u00fang (Science Communication and Public Engagement) t\u1ea1i Universiti Malaya (UM), Malaysia. \u0110\u00e2y l\u00e0 l\u0129nh v\u1ef1c chuy\u00ean m\u00f4n c\u1ed1t l\u00f5i m\u00e0 anh \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n v\u00e0 ti\u1ebfp t\u1ee5c theo \u0111u\u1ed5i trong nghi\u00ean c\u1ee9u, gi\u1ea3ng d\u1ea1y v\u00e0 th\u1ef1c h\u00e0nh ngh\u1ec1 nghi\u1ec7p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft c\u00f3 sai s\u00f3t ho\u1eb7c mu\u1ed1n g\u00f3p \u00fd, vui l\u00f2ng g\u1eedi email v\u1ec1 hi@dykhoa.com.<\/p>\n\n\n\n<details class=\"wp-block-details dk-refs is-layout-flow wp-block-details-is-layout-flow\"><summary>T\u00e0i li\u1ec7u tham kh\u1ea3o (3 ngu\u1ed3n)<\/summary>\n<p class=\"wp-block-paragraph\">Loomba, S., de Figueiredo, A., Piatek, S. J., de Graaf, K., &amp; Larson, H. J. (2021). Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA.&nbsp;<em>Nature Human Behaviour, 5<\/em>(3), 337-348. https:\/\/doi.org\/10.1038\/s41562-021-01056-1<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Loomba, S., de Figueiredo, A., Piatek, S. J., de Graaf, K., &amp; Larson, H. J. (2021). Author correction: Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA.&nbsp;<em>Nature Human Behaviour, 5<\/em>, 960. https:\/\/doi.org\/10.1038\/s41562-021-01172-y<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00e0y \u0111\u0103ng<\/p>\n<\/details>\n\n\n<div class=\"wp-block-post-date\"><time datetime=\"2026-08-09T14:21:12+07:00\">09\/08\/2026<\/time><\/div>","protected":false},"excerpt":{"rendered":"<p>B\u1ed1i c\u1ea3nh s\u1ef1 vi\u1ec7c Cu\u1ed1i n\u0103m 2020, th\u1ebf gi\u1edbi chu\u1ea9n b\u1ecb tri\u1ec3n khai v\u1eafc-xin Covid-19. Song &hellip; <a title=\"Tin gi\u1ea3 v\u1eafc-xin Covid-19 l\u00e0m gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng: b\u00e0i h\u1ecdc t\u1eeb m\u1ed9t nghi\u00ean c\u1ee9u\" class=\"hm-read-more\" href=\"https:\/\/dykhoa.com\/blog\/tin-gia-vac-xin-covid19-va-y-dinh-tiem-chung\/\"><span class=\"screen-reader-text\">Tin gi\u1ea3 v\u1eafc-xin Covid-19 l\u00e0m gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng: b\u00e0i h\u1ecdc t\u1eeb m\u1ed9t nghi\u00ean c\u1ee9u<\/span>\u0110\u1ecdc ti\u1ebfp<\/a><\/p>\n","protected":false},"author":1,"featured_media":513,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,3],"tags":[49,248,23,249],"dk_series":[],"class_list":["post-512","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-study","category-truyen-thong-khoa-hoc","tag-misinformation","tag-tin-gia-vac-xin","tag-truyen-thong-khoa-hoc","tag-y-dinh-tiem-chung"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tin gi\u1ea3 v\u1eafc-xin Covid-19 l\u00e0m gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng<\/title>\n<meta name=\"description\" content=\"Tin gi\u1ea3 v\u1eafc-xin Covid-19 t\u00e1c \u0111\u1ed9ng th\u1ebf n\u00e0o \u0111\u1ebfn \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng? Ph\u00e2n t\u00edch case study t\u1eeb nghi\u00ean c\u1ee9u RCT c\u1ee7a Loomba v\u00e0 c\u1ed9ng s\u1ef1 (2021) tr\u00ean Nature Human Behaviour.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dykhoa.com\/blog\/tin-gia-vac-xin-covid19-va-y-dinh-tiem-chung\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tin gi\u1ea3 v\u1eafc-xin Covid-19 l\u00e0m gi\u1ea3m \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng\" \/>\n<meta property=\"og:description\" content=\"Tin gi\u1ea3 v\u1eafc-xin Covid-19 t\u00e1c \u0111\u1ed9ng th\u1ebf n\u00e0o \u0111\u1ebfn \u00fd \u0111\u1ecbnh ti\u00eam ch\u1ee7ng? 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