T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 4 – Arkady Leokum trong m\u00f9a \u201cvi\u00eam nhi\u1ec7t\u201d (ti\u1ebfng Anh g\u1ecdi l\u00e0 \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d hay fever) b\u00e1o ch\u00ed m\u1ef9 \u1edf nhi\u1ec1u th\u00e0nh ph\u1ed1 loan tin \u201c\u0111\u1ebfm ph\u1ea5n hoa\u201d. Ph\u1ea5n hoa l\u00e0 g\u00ec, n\u00f3 c\u00f3 li\u00ean quan g\u00ec \u0111\u1ebfn \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d? V\u00e0 \u201c\u0111\u1ebfm ph\u1ea5n hoa\u201d l\u00e0 c\u00e1i g\u00ec? m\u1ed9t ng\u01b0\u1eddi \u0111\u01b0\u1ee3c coi l\u00e0 b\u1ecb \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d khi qu\u00e1 nh\u1ea1y c\u1ea3m v\u1edbi ph\u1ea5n hoa hay m\u1ed9t ch\u1ea5t b\u1ee5i n\u00e0o \u0111\u00f3 bay trong kh\u00f4ng kh\u00ed. \u201cPh\u1ea5n\u201d (pollen) l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m do th\u1ea3o m\u1ed9c t\u1ea1o ra. Hoa c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c th\u1ea3o m\u1ed9c \u0111\u1ec1u ch\u1ee9a r\u1ea5t nhi\u1ec1u ph\u1ea5n hoa. tuy nhi\u00ean c\u0169ng c\u00f3 nhi\u1ec1u th\u1ea3o m\u1ed9c ch\u1ee9a ph\u1ea5n trong qu\u1ea3, h\u1ea1t. C\u00f4n tr\u00f9ng l\u00e0m ph\u1ea5n v\u00e3i ra tung t\u00f3e, r\u1ed3i gi\u00f3 \u0111em r\u1ea3i kh\u1eafp trong kh\u00f4ng kh\u00ed v\u00e0 g\u00e2y ra ch\u1ee9ng m\u00e0 ta g\u1ecdi l\u00e0 \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d. C\u00f3 ba nh\u00f3m th\u1ea3o m\u1ed9c ch\u1ee7 y\u1ebfu m\u00e0 ph\u1ea5n c\u1ee7a ch\u00fang g\u00e2y ra ch\u1ee9ng s\u1ed1t c\u1ecf kh\u00f4, v\u00e0 m\u1ed7i nh\u00f3m n\u00e0y g\u00e2y b\u1ec7nh v\u00e0o t\u1eebng \u201cm\u00f9a\u201d, ngh\u0129a l\u00e0 t\u1eebng kho\u1ea3ng th\u1eddi gian trong n\u0103m. Ch\u1eb3ng h\u1ea1n, c\u00f3 nh\u1eefng lo\u1ea1i c\u00e2y g\u00e2y b\u1ec7nh trong kho\u1ea3ng th\u00e1ng t\u01b0 th\u00e1ng n\u0103m. C\u00f3 nh\u1eefng lo\u1ea1i th\u1ea3o d\u1ea1i g\u00e2y b\u1ec7nh trong kho\u1ea3ng th\u1eddi gian t\u1eeb th\u00e1ng n\u0103m \u0111\u1ebfn th\u00e1ng b\u1ea3y. C\u00f3 nh\u1eefng lo\u1ea1i h\u1ea1t g\u00e2y b\u1ec7nh trong kho\u1ea3ng th\u1eddi gian t\u1eeb th\u00e1ng t\u00e1m \u0111\u1ebfn th\u00e1ng m\u01b0\u1eddi.<\/p>\n\n\n\n
V\u00ec c\u00f3 nh\u1eefng lo\u1ea1i c\u00e2y d\u1ea1i m\u00e0 ch\u1ec9 m\u1ed9t c\u00e2y th\u00f4i c\u0169ng t\u1ea1o ra 100.000 h\u1ea1t b\u1ee5i ph\u1ea5n li ti, cho n\u00ean, trong kho\u1ea3ng th\u1eddi gian n\u00e0o \u0111\u00f3, trong kh\u00f4ng kh\u00ed c\u00f3 \u0111\u1ea7y b\u1ee5i ph\u1ea5n. H\u1ec5 khi n\u00e0o c\u00f3 nhi\u1ec1u b\u1ee5i ph\u1ea5n trong kh\u00f4ng kh\u00ed th\u00ec d\u0129 nhi\u00ean, l\u00fac \u0111\u00f3 thi\u00ean h\u1ea1 nhi\u1ec1u ng\u01b0\u1eddi b\u1ecb \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d. tr\u1edf l\u1ea1i c\u00e2u h\u1ecfi: \u201c\u0111\u1ebfm ph\u1ea5n hoa\u201d l\u00e0 g\u00ec? V\u00e0o nh\u1eefng m\u00f9a m\u00e0 m\u1ed9t \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 qu\u00e1 nhi\u1ec1u ph\u1ea5n hoa khi\u1ebfn cho m\u1ed9t s\u1ed1 ng\u01b0\u1eddi n\u00e0o \u0111\u00f3 ph\u1ea3i \u0111i \u1edf ch\u1ed7 kh\u00e1c cho \u0111\u1ebfn khi qua m\u00f9a \u0111\u00f3 m\u1edbi d\u1ecdn v\u1ec1. mu\u1ed1n bi\u1ebft ph\u1ea5n hoa nhi\u1ec1u hay \u00edt trong kh\u00f4ng kh\u00ed th\u00ec c\u0169ng gi\u1ea3n d\u1ecb th\u00f4i. L\u1ea5y m\u1ed9t m\u1ea3nh ki\u1ebfng th\u1ee7y tinh, ph\u1ebft l\u00ean m\u1eb7t m\u1ed9t l\u1edbp d\u1ea7u m\u1ecfng r\u1ed3i \u0111\u1ec3 ng\u1eeda n\u00f3 ngo\u00e0i tr\u1eddi. 24 gi\u1edd sau l\u1ea5y v\u00e0o \u0111\u01b0a l\u00ean k\u00ednh hi\u1ec3n vi \u0111\u1ebfm c\u00e1c h\u1ea1t ph\u1ea5n b\u00e1m tr\u00ean m\u1ea3nh ki\u1ebfng \u0111\u00f3. Gi\u00f3 v\u00e0 kh\u00ed h\u1eadu c\u0169ng c\u00f3 \u1ea3nh h\u01b0\u1edfng kh\u00e1 l\u1edbn \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a nh\u1eefng b\u1ee5i ph\u1ea5n. trong nh\u1eefng th\u00e1ng h\u00e8 c\u00f3 nhi\u1ec1u m\u01b0a, c\u00e2y c\u1ed1i t\u1ed1t t\u01b0\u01a1i s\u1ebd t\u1ea1o ra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ph\u1ea5n hoa. trong nh\u1eefng th\u00e1ng h\u00e8 kh\u00f4 h\u1ea1n, s\u1ed1 l\u01b0\u1ee3ng n\u00e0y nh\u1ecf h\u01a1n. \u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi c\u0169ng g\u00f3p ph\u1ea7n l\u00e0m cho b\u1ee5i ph\u1ea5n mau kh\u00f4, trong khi \u0111\u00f3 kh\u00ed h\u1eadu \u1ea9m th\u00ec ng\u01b0\u1ee3c l\u1ea1i. N\u1ebfu trong ng\u00e0y tr\u1eddi b\u1eaft \u0111\u1ea7u m\u01b0a s\u1edbm v\u00e0 k\u00e9o d\u00e0i th\u00ec m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng b\u1ee5i ph\u1ea5n c\u0169ng b\u1ecb n\u01b0\u1edbc m\u01b0a k\u00e9o xu\u1ed1ng \u0111\u1ea5t. C\u00e1i l\u00fd do khi\u1ebfn c\u00f3 c\u00e1i t\u00ean \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d l\u00e0 tri\u1ec7u ch\u1ee9ng v\u00e0 lo\u1ea1i b\u1ec7nh n\u00e0y th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n \u1edf n\u01b0\u1edbc Anh v\u00e0o m\u00f9a c\u1eaft c\u1ecf, l\u00e0m cho c\u1ecf kh\u00f4 \u0111i \u0111\u1ec3 d\u00e0nh cho s\u00fac v\u1eadt \u0103n v\u00e0o m\u00f9a \u0111\u00f4ng.<\/p>\n\n\n\n
N\u0103m 1812, m\u1ed9t y s\u0129 n\u01b0\u1edbc Anh \u0111\u00e3 vi\u1ebft trong b\u1ea3n b\u00e1o c\u00e1o khoa h\u1ecdc c\u1ee7a \u00f4ng v\u00e0 \u0111\u00e3 d\u00f9ng c\u1ee5m t\u1eeb \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d \u0111\u1ec3 ch\u1ec9 tri\u1ec7u ch\u1ee9ng c\u1ee7a th\u1ee9 b\u1ec7nh hay xu\u1ea5t hi\u1ec7n v\u00e0o kho\u1ea3ng th\u1eddi gian n\u00e0y trong n\u0103m.<\/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 trong m\u00f9a \u201cvi\u00eam nhi\u1ec7t\u201d (ti\u1ebfng Anh g\u1ecdi l\u00e0 \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d hay fever) b\u00e1o ch\u00ed m\u1ef9 \u1edf nhi\u1ec1u th\u00e0nh ph\u1ed1 loan tin \u201c\u0111\u1ebfm ph\u1ea5n hoa\u201d. Ph\u1ea5n hoa l\u00e0 g\u00ec, n\u00f3 c\u00f3 li\u00ean quan g\u00ec \u0111\u1ebfn \u201cs\u1ed1t c\u1ecf kh\u00f4\u201d? V\u00e0 […]<\/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-14255","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\/14255","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=14255"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14255\/revisions"}],"predecessor-version":[{"id":14256,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14255\/revisions\/14256"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}