{"id":4905,"date":"2021-05-12T14:07:22","date_gmt":"2021-05-12T07:07:22","guid":{"rendered":"https:\/\/cdcangiang.vn\/?p=4905"},"modified":"2021-08-07T22:41:15","modified_gmt":"2021-08-07T15:41:15","slug":"vac-xin-astrazeneca-co-hieu-qua-chong-lai-cac-bien-the-moi-cua-sars-cov-2","status":"publish","type":"post","link":"https:\/\/cdcangiang.vn\/index.php\/2021\/05\/12\/vac-xin-astrazeneca-co-hieu-qua-chong-lai-cac-bien-the-moi-cua-sars-cov-2\/","title":{"rendered":"V\u1eafc xin AstraZeneca c\u00f3 hi\u1ec7u qu\u1ea3 ch\u1ed1ng l\u1ea1i c\u00e1c bi\u1ebfn th\u1ec3 m\u1edbi c\u1ee7a SARS-CoV-2?"},"content":{"rendered":"<h2 class=\"article-summary\">V\u1eafc xin AstraZeneca c\u00f3 hi\u1ec7u l\u1ef1c b\u1ea3o v\u1ec7 tr\u01b0\u1edbc t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh COVID-19 t\u1eeb 62%-90%, nh\u01b0ng tr\u01b0\u1edbc s\u1ef1 xu\u1ea5t hi\u1ec7n li\u00ean ti\u1ebfp c\u1ee7a c\u00e1c bi\u1ebfn th\u1ec3 m\u1edbi, c\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c quan t\u00e2m hi\u1ec7n nay l\u00e0 vaccine n\u00e0y c\u00f3 hi\u00ea\u1ee5 qu\u1ea3 ch\u1ed1ng l\u1ea1i nh\u1eefng ch\u1ee7ng m\u1edbi hay kh\u00f4ng?<\/h2>\n<figure id=\"attachment_4906\" aria-describedby=\"caption-attachment-4906\" style=\"width: 720px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-4906\" src=\"https:\/\/cdcangiang.vn\/wp-content\/uploads\/2021\/05\/1111-22.jpeg\" alt=\"\" width=\"720\" height=\"378\" srcset=\"https:\/\/cdcangiang.vn\/wp-content\/uploads\/2021\/05\/1111-22.jpeg 720w, https:\/\/cdcangiang.vn\/wp-content\/uploads\/2021\/05\/1111-22-300x158.jpeg 300w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption id=\"caption-attachment-4906\" class=\"wp-caption-text\">C\u01a1 s\u1edf c\u1ee7a nghi\u00ean c\u1ee9u<\/figcaption><\/figure>\n<p>Cho \u0111\u1ebfn nay, nhi\u1ec1u qu\u1ed1c gia \u0111\u00e3 tri\u1ec3n khai c\u00e1c \u0111\u1ee3t ti\u00eam ch\u1ee7ng, v\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u l\u00e0 c\u00e1c nh\u00e2n vi\u00ean y t\u1ebf. M\u1eb7c d\u00f9 v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng v\u1eafc xin kh\u00e1c nhau, nh\u01b0ng c\u00f3 m\u1ed9t \u0111i\u1ec3m chung trong c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c lo\u1ea1i v\u1eafc xin l\u00e0 ngo\u00e0i vi\u1ec7c t\u1ea1o ra kh\u00e1ng th\u1ec3 ch\u1ed1ng l\u1ea1i virus, c\u00f2n c\u00f3 th\u1ec3 t\u1ea1o ra t\u1ebf b\u00e0o lympho T, lympho B ghi nh\u1edb \u0111\u1ec3 ch\u1ed1ng l\u1ea1i virus x\u00e2m nh\u1eadp.<\/p>\n<p>Nhi\u1ec1u lo\u1ea1i v\u1eafc xin \u0111\u00e3 nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 cho ph\u00e9p s\u1eed d\u1ee5ng kh\u1ea9n c\u1ea5p t\u1eeb C\u01a1 quan Qu\u1ea3n l\u00fd Th\u1ef1c ph\u1ea9m v\u00e0 D\u01b0\u1ee3c ph\u1ea9m\u00a0<em>M\u1ef9\u00a0<\/em>(FDA) v\u00e0 c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd kh\u00e1c. Vi\u1ec7c tri\u1ec3n khai c\u00e1c chi\u1ebfn d\u1ecbch v\u1eafc xin mang l\u1ea1i hy v\u1ecdng r\u1eb1ng ti\u00eam ch\u1ee7ng c\u00f3 th\u1ec3 ch\u1ea5m d\u1ee9t \u0111\u1ea1i d\u1ecbch.<\/p>\n<p>Tuy nhi\u00ean, v\u00e0o th\u00e1ng 12 n\u0103m 2020, Anh b\u00e1o c\u00e1o s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a m\u1ed9t bi\u1ebfn th\u1ec3 m\u1edbi, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ebfn th\u1ec3 B.1.1.7, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng l\u00e2y nhi\u1ec5m, l\u00e0m d\u1ea5y l\u00ean m\u1ed1i quan ng\u1ea1i l\u1edbn.<\/p>\n<p>V\u1eafc xin ph\u00f2ng COVID-19 c\u1ee7a AstraZeneca \u0111\u01b0\u1ee3c \u0111\u1ed3ng ph\u00e1t tri\u1ec3n b\u1edfi \u0110\u1ea1i h\u1ecdc Oxford v\u00e0 H\u00e3ng d\u01b0\u1ee3c \u2013 AstraZeneca (V\u01b0\u01a1ng qu\u1ed1c Anh). V\u1eafc xin AstraZeneca c\u00f3 hi\u1ec7u l\u1ef1c b\u1ea3o v\u1ec7\u00a0<em>tr\u01b0\u1edbc\u00a0<\/em>t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh COVID-19 t\u1eeb 62%-90%, d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u l\u00e2m s\u00e0ng. V\u1eafc xin AstraZeneca s\u1eed d\u1ee5ng vector l\u00e0 virus adeno m\u1ea5t kh\u1ea3 n\u0103ng sao ch\u00e9p c\u1ee7a tinh tinh, d\u1ef1a tr\u00ean phi\u00ean b\u1ea3n suy y\u1ebfu c\u1ee7a virus adeno (virus c\u00fam g\u00e2y b\u1ec7nh \u1edf tinh tinh), c\u00f3 ch\u1ee9a v\u1eadt ch\u1ea5t di truy\u1ec1n l\u00e0 protein gai b\u1ec1 m\u1eb7t c\u1ee7a virus g\u00e2y b\u1ec7nh COVID-19 \u0111\u01b0\u1ee3c g\u1ecdi t\u00ean l\u00e0 Spike ho\u1eb7c S. Protein.<\/p>\n<p>Spike ch\u00ednh l\u00e0 th\u00e0nh ph\u1ea7n ti\u00ean phong m\u1edf \u0111\u01b0\u1eddng ti\u1ebfn\u00a0<em>c\u00f4<\/em>\u00a0ng cho virus SARS-CoV-2 x\u00e2m nh\u1eadp c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ee5c ti\u00eau t\u1ea5n\u00a0<em>c\u00f4<\/em>\u00a0ng c\u1ee7a h\u1ec7 mi\u1ec5n d\u1ecbch khi virus SARS-CoV-2 x\u00e2m nh\u1eadp.<\/p>\n<p><em>Sau\u00a0<\/em>khi ti\u00eam, v\u1eafc xin s\u1ebd mang m\u00e3 di truy\u1ec1n c\u1ee7a virus corona quy \u0111\u1ecbnh protein S v\u00e0o t\u1ebf b\u00e0o c\u1ee7a c\u01a1 th\u1ec3 b\u1ea1n. C\u01a1 th\u1ec3 b\u1ea1n b\u1eaft \u0111\u1ea7u t\u1ef1 t\u1ea1o ra protein S. C\u00e1c t\u1ebf b\u00e0o mi\u1ec5n d\u1ecbch trong m\u00e1u c\u1ee7a b\u1ea1n nh\u1eadn di\u1ec7n protein S l\u00e0 \u201ck\u1ebb x\u00e2m nh\u1eadp\u201d, v\u00e0 \u0111i\u1ec1u n\u00e0y k\u00edch ho\u1ea1t ph\u1ea3n \u1ee9ng c\u1ee7a h\u1ec7 mi\u1ec5n d\u1ecbch. Trong nghi\u00ean c\u1ee9u hi\u1ec7n t\u1ea1i, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u mu\u1ed1n x\u00e1c \u0111\u1ecbnh xem li\u1ec7u v\u1eafc xin Oxford-AstraZeneca c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i ch\u1ee7ng SARS-CoV-2 m\u1edbi hay kh\u00f4ng?<\/p>\n<p><strong>V\u00e0 k\u1ebft q\u1ee7a \u0111\u1ea1t \u0111\u01b0\u1ee3c<\/strong><\/p>\n<p>\u0110\u1ec3 tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu\u1ed9c T\u1ed5 h\u1ee3p gen COVID-19 V\u01b0\u01a1ng qu\u1ed1c Anh, D\u1ef1 \u00e1n AMPHEUS v\u00e0 Nh\u00f3m th\u1eed nghi\u1ec7m v\u1eafc xin Oxford COVID-19 \u0111\u00e3 t\u00ecm hi\u1ec3u xem li\u1ec7u v\u1eafc xin n\u00e0y c\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong vi\u1ec7c ch\u1ed1ng l\u1ea1i bi\u1ebfn th\u1ec3 B.1.1.7, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bi\u1ebfn th\u1ec3 c\u1ee7a V\u01b0\u01a1ng qu\u1ed1c Anh hay kh\u00f4ng? K\u1ebft qu\u1ea3 c\u1ee7a nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c\u00a0<em>c\u00f4<\/em>\u00a0ng b\u1ed1 tr\u00ean T\u1ea1p ch\u00ed Y khoa h\u00e0ng \u0111\u1ea7u The Lancet.<\/p>\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 tuy\u1ec3n c\u00e1c t\u00ecnh nguy\u1ec7n vi\u00ean tr\u00ean 18 tu\u1ed5i. Nh\u1eefng ng\u01b0\u1eddi tham gia \u0111\u00e3 \u0111\u01b0\u1ee3c ghi danh v\u00e0o c\u00e1c nghi\u00ean c\u1ee9u\u00a0<em>hi\u1ec7u qu\u1ea3\u00a0<\/em>c\u1ee7a v\u1eafc xin giai \u0111o\u1ea1n 2\/3 \u1edf Anh v\u00e0 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ng\u1eabu nhi\u00ean. Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 thu th\u1eadp c\u00e1c m\u1eabu g\u1ea1c \u0111\u01b0\u1eddng th\u1edf \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c tri\u1ec7u ch\u1ee9ng c\u1ee7a COVID-19 bao g\u1ed3m s\u1ed1t, ho, kh\u00f3 th\u1edf v\u00e0 m\u1ea5t kh\u1ee9u gi\u00e1c ho\u1eb7c v\u1ecb gi\u00e1c. C\u00e1c m\u1eabu g\u1ea1c \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng x\u00e9t nghi\u1ec7m khu\u1ebfch \u0111\u1ea1i axit nucleic (NAAT) cho SARS-CoV-2 v\u00e0 c\u00e1c m\u1eabu d\u01b0\u01a1ng t\u00ednh \u0111\u01b0\u1ee3c gi\u1ea3i tr\u00ecnh t\u1ef1.<\/p>\n<p>Nh\u00f3m nghi\u00ean c\u1ee9u ph\u00e1t hi\u1ec7n ra r\u1eb1ng\u00a0<em>hi\u1ec7u qu\u1ea3\u00a0<\/em>l\u00e2m s\u00e0ng ch\u1ed1ng l\u1ea1i nhi\u1ec5m tr\u00f9ng NAAT c\u00f3 tri\u1ec7u ch\u1ee9ng l\u00e0 70,4% \u0111\u1ed1i v\u1edbi d\u00f2ng B.1.1.7 v\u00e0 81,5% \u0111\u1ed1i v\u1edbi d\u00f2ng kh\u00f4ng ph\u1ea3i B.1.1.7.<\/p>\n<p>C\u00f2n v\u1edbi bi\u1ebfn th\u1ec3 Nam Phi, trong m\u1ed9t th\u00f4ng c\u00e1o b\u00e1o ch\u00ed m\u1edbi \u0111\u00e2y, b\u00e0 Sarah Walters, gi\u00e1m \u0111\u1ed1c chi nh\u00e1nh AstraZeneca t\u1ea1i \u00c1o cho bi\u1ebft, \u0111\u1ebfn nay c\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y v\u1eafc xin hi\u1ec7n c\u00f3 c\u1ee7a AstraZeneca \u00edt\u00a0<em>hi\u1ec7u qu\u1ea3\u00a0<\/em>h\u01a1n trong ph\u00f2ng ng\u1eeba bi\u1ebfn th\u1ec3 Nam Phi. Nh\u01b0ng\u00a0<em>tr\u01b0\u1edbc\u00a0<\/em>cu\u1ed1i n\u0103m nay, AstraZeneca s\u1ebd c\u00f3 phi\u00ean b\u1ea3n \u0111i\u1ec1u ch\u1ec9nh c\u1ee7a v\u1eafc xin ng\u1eeba COVID-19 ch\u1ed1ng l\u1ea1i \u0111\u01b0\u1ee3c bi\u1ebfn th\u1ec3 virus SARS-CoV-2 xu\u1ea5t hi\u1ec7n \u0111\u1ea7u ti\u00ean t\u1ea1i Nam Phi.<\/p>\n<p>Theo b\u00e0 Walters, hi\u1ec7n t\u1ea1i AstraZeneca v\u00e0 \u0110\u1ea1i h\u1ecdc Oxford \u0111\u00e3 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i v\u1eafc xin nh\u1eb1m v\u00e0o bi\u1ebfn th\u1ec3 virus \u1edf Nam Phi, v\u00e0 n\u1ebfu c\u1ea7n thi\u1ebft, hai b\u00ean c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c vaccine\u00a0<em>tr\u01b0\u1edbc\u00a0<\/em>cu\u1ed1i n\u0103m nay.<\/p>\n<p>V\u1edbi ph\u00e1c \u0111\u1ed3 ti\u00eam 2 li\u1ec1u ti\u00eam ti\u00eau chu\u1ea9n, \u0111\u01b0\u1ee3c ch\u1ee9ng minh an to\u00e0n v\u00e0\u00a0<em>hi\u1ec7u qu\u1ea3\u00a0<\/em>trong vi\u1ec7c ng\u0103n ng\u1eeba COVID-19, v\u1eafc xin AstraZeneca (V\u01b0\u01a1ng qu\u1ed1c Anh) \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t s\u1eed d\u1ee5ng kh\u1ea9n c\u1ea5p t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<p style=\"text-align: right;\"><em><strong>Ngu\u1ed3n B\u1ed9 Y t\u1ebf<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u1eafc xin AstraZeneca c\u00f3 hi\u1ec7u l\u1ef1c b\u1ea3o v\u1ec7 tr\u01b0\u1edbc t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh COVID-19 t\u1eeb 62%-90%, nh\u01b0ng tr\u01b0\u1edbc s\u1ef1 xu\u1ea5t hi\u1ec7n li\u00ean ti\u1ebfp c\u1ee7a c\u00e1c bi\u1ebfn th\u1ec3 m\u1edbi, c\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c quan t\u00e2m hi\u1ec7n nay l\u00e0 vaccine n\u00e0y c\u00f3 hi\u00ea\u1ee5 qu\u1ea3 ch\u1ed1ng l\u1ea1i nh\u1eefng ch\u1ee7ng m\u1edbi hay kh\u00f4ng? Cho \u0111\u1ebfn nay, nhi\u1ec1u qu\u1ed1c gia \u0111\u00e3 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4906,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"limit_modified_date":"","last_modified_date":"","footnotes":""},"categories":[235,242],"tags":[],"class_list":["post-4905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phong-chong-covid-19","category-vaccine-covid"],"_links":{"self":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/4905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4905"}],"version-history":[{"count":1,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/4905\/revisions"}],"predecessor-version":[{"id":4907,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/4905\/revisions\/4907"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/media\/4906"}],"wp:attachment":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}