{"id":28467,"date":"2019-01-13T17:01:00","date_gmt":"2019-01-13T10:01:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28467"},"modified":"2021-10-03T17:03:27","modified_gmt":"2021-10-03T10:03:27","slug":"vi-khuan-tren-tram-iss-da-dot-bien-nhung-khong-tro-nen-nguy-hiem","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/vi-khuan-tren-tram-iss-da-dot-bien-nhung-khong-tro-nen-nguy-hiem\/","title":{"rendered":"Vi khu\u1ea9n tr\u00ean tr\u1ea1m ISS \u0111\u00e3 \u0111\u1ed9t bi\u1ebfn, nh\u01b0ng kh\u00f4ng tr\u1edf n\u00ean nguy hi\u1ec3m"},"content":{"rendered":"\n

Vi khu\u1ea9n tr\u00ean Tr\u1ea1m v\u0169 tr\u1ee5 qu\u1ed1c t\u1ebf \u0111ang ph\u00e1t tri\u1ec3n v\u00e0 bi\u1ebfn \u0111\u1ed5i trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng gian – nh\u01b0ng theo nghi\u00ean c\u1ee9u m\u1edbi nh\u1ea5t, ch\u00fang d\u01b0\u1eddng nh\u01b0 kh\u00f4ng ph\u1ea3i m\u1ed1i \u0111e d\u1ecda \u0111\u1ed1i v\u1edbi con ng\u01b0\u1eddi.<\/strong><\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

<\/a>Tr\u1ea1m v\u0169 tr\u1ee5 qu\u1ed1c t\u1ebf. \u1ea2nh: NASA<\/p>\n\n\n\n

\u0110\u00e2y qu\u1ea3 l\u00e0 tin vui \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 du h\u00e0nh v\u0169 tr\u1ee5, khi m\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00e2y b\u00e0y t\u1ecf lo ng\u1ea1i v\u1ec1 nguy c\u01a1 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng gian s\u1ebd khi\u1ebfn m\u1ed9t s\u1ed1 ch\u1ee7ng vi khu\u1ea9n bi\u1ebfn \u0111\u1ed5i theo h\u01b0\u1edbng \u0111\u1ed9c h\u1ea1i h\u01a1n.<\/p>\n\n\n\n

“\u0110\u00e3 c\u00f3 r\u1ea5t nhi\u1ec1u nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c y\u1ebfu t\u1ed1 ph\u00f3ng x\u1ea1, vi tr\u1ecdng l\u1ef1c v\u00e0 thi\u1ebfu kh\u00f4ng kh\u00ed t\u00e1c \u0111\u1ed9ng l\u00ean sinh v\u1eadt s\u1ed1ng, bao g\u1ed3m c\u1ea3 vi khu\u1ea9n”. Erica Hartmann, gi\u00e1o s\u01b0 sinh h\u1ecdc t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc T\u00e2y B\u1eafc, Miami, Florida, cho bi\u1ebft. T\u1eeb l\u00e2u, c\u00e1c nh\u00e0 khoa h\u1ecdc h\u00e0ng \u0111\u1ea7u \u0111\u00e3 \u0111\u1eb7t ra c\u00e2u h\u1ecfi li\u1ec7u du h\u00e0nh v\u0169 tr\u1ee5 c\u00f3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh vi khu\u1ea9n ti\u1ebfn h\u00f3a th\u00e0nh m\u1ed9t ch\u1ee7ng “si\u00eau vi khu\u1ea9n” hay kh\u00f4ng?<\/p>\n\n\n\n

D\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u m\u1edbi, \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 ng\u00e0y 8\/1 tr\u00ean t\u1ea1p ch\u00ed mSystems , c\u00e2u tr\u1ea3 l\u1eddi c\u00f3 v\u1ebb nh\u01b0 l\u00e0 “kh\u00f4ng”, theo gi\u00e1o s\u01b0 Hartmann.<\/p>\n\n\n\n

Trong nghi\u00ean c\u1ee9u n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e2n t\u00edch DNA t\u1eeb hai lo\u1ea1i vi khu\u1ea9n: Staphylococcus aureus (\u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y tr\u00ean da, th\u01b0\u1eddng g\u00e2y nhi\u1ec5m tr\u00f9ng t\u1ee5 c\u1ea7u khu\u1ea9n) v\u00e0 Bacillus cereus (t\u00ecm th\u1ea5y trong h\u1ec7 th\u1ed1ng ti\u00eau h\u00f3a \u0111\u1ed9ng v\u1eadt c\u0169ng nh\u01b0 b\u00f9n \u0111\u1ea5t v\u00e0 th\u01b0\u1eddng l\u00e0 v\u00f4 h\u1ea1i). C\u1ea3 hai lo\u1ea1i vi khu\u1ea9n \u0111\u01b0\u1ee3c thu th\u1eadp t\u1eeb m\u00f4i tr\u01b0\u1eddng quanh tr\u1ea1m v\u0169 tr\u1ee5. K\u1ebft qu\u1ea3 cho th\u1ea5y: m\u1eb7c d\u00f9 c\u00e1c vi khu\u1ea9n n\u00e0y \u0111\u00e3 \u0111\u1ed9t bi\u1ebfn kh\u00e1c v\u1edbi ch\u1ee7ng vi khu\u1ea9n g\u1ed1c tr\u00ean tr\u00e1i \u0111\u1ea5t, nh\u01b0ng kh\u00f4ng t\u00ecm th\u1ea5y b\u1ea5t k\u1ef3 \u0111\u1eb7c \u0111i\u1ec3m di truy\u1ec1n r\u00f5 r\u00e0ng n\u00e0o c\u1ee7a “si\u00eau vi khu\u1ea9n” (\u0111\u01b0\u1ee3c g\u1ecdi nh\u01b0 v\u1eady v\u00ec ch\u00fang kh\u00e1ng h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i kh\u00e1ng sinh).<\/p>\n\n\n\n

Tr\u00ean tr\u00e1i \u0111\u1ea5t, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho bi\u1ebft, khi vi khu\u1ea9n r\u1eddi kh\u1ecfi c\u01a1 th\u1ec3 con ng\u01b0\u1eddi (\u0111i\u1ec1u kh\u00e1 th\u01b0\u1eddng xuy\u00ean), ch\u00fang s\u1ebd t\u1ef1 bi\u1ebfn \u0111\u1ed5i \u0111\u1ec3 th\u00edch nghi v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u1edbi. Nh\u01b0ng trong c\u00e1c khoang ch\u1eadt h\u1eb9p c\u1ee7a t\u00e0u v\u0169 tr\u1ee5, ng\u01b0\u1eddi ta lo ng\u1ea1i r\u1eb1ng vi\u1ec7c ti\u1ebfp x\u00fac v\u1edbi vi khu\u1ea9n \u0111\u1ed9t bi\u1ebfn nh\u01b0 v\u1eady trong nhi\u1ec1u th\u00e1ng, c\u00f3 th\u1ec3 s\u1ebd nguy hi\u1ec3m v\u1edbi s\u1ee9c kh\u1ecfe c\u00e1c phi h\u00e0nh gia.<\/p>\n\n\n\n

Tuy nhi\u00ean, c\u00f3 v\u1ebb l\u00e0 s\u1ef1 \u0111\u1ed9t bi\u1ebfn c\u1ee7a vi khu\u1ea9n \u0111\u1ec3 th\u00edch nghi v\u1edbi kh\u00f4ng gian v\u0169 tr\u1ee5, kh\u00f4ng t\u1ea1o ra b\u1ea5t k\u1ef3 y\u1ebfu t\u1ed1 b\u1ea5t th\u01b0\u1eddng n\u00e0o khi\u1ebfn cho ch\u00fang d\u1ec5 l\u00e2y lan ho\u1eb7c kh\u00f3 ch\u1eefa tr\u1ecb h\u01a1n.<\/p>\n\n\n\n

Nh\u01b0 v\u1eady, vi\u1ec7c du h\u00e0nh v\u0169 tr\u1ee5 trong th\u1eddi gian d\u00e0i s\u1ebd b\u1edbt \u0111\u01b0\u1ee3c m\u1ed9t m\u1ed1i lo v\u1ec1 y t\u1ebf. M\u1eb7c d\u00f9 c\u00e1c quy tr\u00ecnh ki\u1ec3m so\u00e1t nghi\u00eam ng\u1eb7t c\u1ee7a NASA \u0111\u00e3 gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c b\u1ec7nh truy\u1ec1n nhi\u1ec5m, nh\u01b0ng v\u1eabn c\u00f2n nguy c\u01a1 do thi\u1ebfu tr\u1ecdng l\u1ef1c s\u1ebd khi\u1ebfn h\u1ec7 mi\u1ec5n d\u1ecbch c\u1ee7a ch\u00fang ta suy y\u1ebfu.<\/p>\n\n\n\n

Phi h\u00e0nh gia Wally Schirra c\u1ee7a t\u00e0u Apollo 7 t\u1eebng b\u1ecb c\u1ea3m l\u1ea1nh khi l\u00e0m nhi\u1ec7m v\u1ee5, d\u00f9 phi h\u00e0nh \u0111o\u00e0n \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra c\u1ea9n th\u1eadn v\u00e0 c\u00e1ch ly m\u1ed9t tu\u1ea7n tr\u01b0\u1edbc khi bay. Kh\u1ea3 n\u0103ng b\u00f9ng ph\u00e1t d\u1ecbch trong m\u1ed9t con t\u00e0u v\u0169 tr\u1ee5 k\u00edn v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u ti\u1ebfp. <\/p>\n\n\n\n

Theo T\u00f9ng Anh<\/p>\n\n\n\n

dantri.com.vn<\/p>\n","protected":false},"excerpt":{"rendered":"

Vi khu\u1ea9n tr\u00ean Tr\u1ea1m v\u0169 tr\u1ee5 qu\u1ed1c t\u1ebf \u0111ang ph\u00e1t tri\u1ec3n v\u00e0 bi\u1ebfn \u0111\u1ed5i trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng gian – nh\u01b0ng theo nghi\u00ean c\u1ee9u m\u1edbi nh\u1ea5t, ch\u00fang d\u01b0\u1eddng nh\u01b0 kh\u00f4ng ph\u1ea3i m\u1ed1i \u0111e d\u1ecda \u0111\u1ed1i v\u1edbi con ng\u01b0\u1eddi. Tr\u1ea1m v\u0169 tr\u1ee5 qu\u1ed1c t\u1ebf. \u1ea2nh: NASA \u0110\u00e2y qu\u1ea3 l\u00e0 tin vui \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 du […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28467","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28467"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28467\/revisions"}],"predecessor-version":[{"id":28472,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28467\/revisions\/28472"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}