T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 4 – Arkady Leokum<\/p>\n\n\n\n
Vi r\u00fat (virus) l\u00e0 sinh v\u1eadt nh\u1ecf nh\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra b\u1ec7nh ho\u1ea1n. Ng\u01b0\u1eddi ta kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y n\u00f3, d\u00f9 b\u1eb1ng k\u00ednh hi\u1ec3n vi lo\u1ea1i th\u00f4ng th\u01b0\u1eddng. Nh\u01b0ng \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc b\u00f3 tay, kh\u00f4ng th\u1ec3 nghi\u00ean c\u1ee9u c\u1ea5u tr\u00fac c\u1ee7a vi r\u00fat. Ng\u00e0y nay, b\u1eb1ng k\u00ednh hi\u1ec3n vi hi\u1ec7n \u0111\u1ea1i, sinh v\u1eadt li ti n\u00e0y \u0111\u00e3 b\u1ecb l\u1ed9 nguy\u00ean h\u00ecnh. Khoa h\u1ecdc \u0111\u00e3 bi\u1ebft kh\u00e1 nhi\u1ec1u v\u1ec1 k\u00edch c\u1ee1, h\u00ecnh d\u1ea1ng c\u1ee7a nhi\u1ec1u th\u1ee9 vi r\u00fat nh\u1edd c\u00f3 k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed. K\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed d\u00f9ng tia \u0111i\u1ec7n t\u1eed thay v\u00ec tia s\u00e1ng. tia \u0111i\u1ec7n t\u1eed \u0111i xuy\u00ean qua m\u1eabu v\u1eadt \u0111\u01b0\u1ee3c quan s\u00e1t v\u00e0 t\u00e1c \u0111\u1ed9ng v\u00e0o \u0111\u0129a tr\u00ean \u0111\u00f3 c\u00f3 b\u1ed9 ph\u1eadn ghi h\u00ecnh. B\u1eb1ng c\u00e1ch n\u00e0y, m\u1eabu v\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00f3ng l\u1edbn ra g\u1ea5p 100.000 l\u1ea7n.<\/p>\n\n\n\n
Nh\u1edd k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n ra c\u00e1c vi r\u00fat c\u00f3 chi\u1ec1u d\u00e0i kho\u1ea3ng 300 milimicrons cho \u0111\u1ebfn 10 milimicrons (m\u1ed9t milimicrons b\u1eb1ng 1\/100.000 milim\u00e9t). Ch\u01b0a c\u00f3 nh\u00e0 khoa h\u1ecdc n\u00e0o d\u00e1m x\u00e1c quy\u1ebft vi r\u00fat l\u00e0 c\u00e1i gi\u1ed1ng g\u00ec. m\u1ed9t v\u00e0i nh\u00e0 khoa khoa h\u1ecdc cho r\u1eb1ng n\u00f3 gi\u1ed1ng nh\u01b0 nh\u1eefng ph\u00e2n t\u1eed c\u01a1 b\u1ea3n, gi\u1ed1ng nh\u01b0 \u201cgen\u201d ch\u1eb3ng h\u1ea1n. Ng\u01b0\u1eddi kh\u00e1c l\u1ea1i cho r\u1eb1ng c\u00f3 th\u1ec3 vi r\u00fat n\u1eb1m \u1edf gi\u1eefa giai \u0111o\u1ea1n sinh v\u1eadt v\u00e0 v\u1eadt ch\u1ea5t v\u00f4 sinh (nonliving matter).<\/p>\n\n\n\n
Nh\u01b0 ch\u00fang ta \u0111\u00e3 bi\u1ebft, vi r\u00fat c\u00f3 th\u1ec3 t\u0103ng tr\u01b0\u1edfng, sinh s\u1ea3n ch\u1ec9 trong m\u1ed9t m\u00f4 s\u1ed1ng. \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ta kh\u00f4ng th\u1ec3 c\u1ea5y n\u00f3 \u1edf b\u00ean ngo\u00e0i m\u00f4 s\u1ed1ng. V\u00e0 th\u1eadt kh\u00f3, r\u1ea5t kh\u00f3 m\u00e0 quan s\u00e1t t\u1eadp qu\u00e1n t\u0103ng tr\u01b0\u1edfng c\u1ee7a n\u00f3. \u0111\u00f3 l\u00e0 l\u00fd do khi\u1ebfn ng\u01b0\u1eddi ta ph\u1ea3i d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng l\u00e0m h\u1ea1i t\u1ebf b\u00e0o v\u00e0 tr\u00ean ph\u1ea3n \u1ee9ng c\u1ee7a ch\u00fang g\u00e2y ra tr\u00ean c\u01a1 th\u1ec3 con ng\u01b0\u1eddi \u0111\u1ec3 ph\u00e2n lo\u1ea1i vi r\u00fat.<\/p>\n\n\n\n
Vi r\u00fat c\u00f3 t\u1ea1o ra \u0111\u1ed9c t\u1ed1 kh\u00f4ng? Cho \u0111\u1ebfn nay ng\u01b0\u1eddi ta v\u1eabn tin r\u1eb1ng vi r\u00fat t\u1ea1o ra c\u00e1c \u0111\u1ed9c t\u1ed1. tuy nhi\u00ean h\u1ea7u nh\u01b0 kh\u00f4ng th\u1ec3 t\u00e1ch bi\u1ec7t vi r\u00fat v\u1edbi \u0111\u1ed9c t\u1ed1. Ng\u01b0\u1eddi ta c\u0169ng ch\u1eb3ng bi\u1ebft, n\u1ebfu qu\u1ea3 th\u1eadt vi r\u00fat t\u1ea1o ra \u0111\u1ed9c t\u1ed1, th\u00ec n\u00f3 t\u1ea1o b\u1eb1ng c\u00e1ch n\u00e0o.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 4 – Arkady Leokum Vi r\u00fat (virus) l\u00e0 sinh v\u1eadt nh\u1ecf nh\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra b\u1ec7nh ho\u1ea1n. Ng\u01b0\u1eddi ta kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y n\u00f3, d\u00f9 b\u1eb1ng k\u00ednh hi\u1ec3n vi lo\u1ea1i th\u00f4ng th\u01b0\u1eddng. Nh\u01b0ng \u0111i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c nh\u00e0 khoa […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-14237","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=14237"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14237\/revisions"}],"predecessor-version":[{"id":14238,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14237\/revisions\/14238"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}