Virus z\u00e1padn\u00edho Nilu je kom\u00e1ry p\u0159en\u00e1\u0161en\u00e9 onemocn\u011bn\u00ed, kter\u00e9 m\u016f\u017ee zp\u016fsobovat ch\u0159ipce podobn\u00e9 p\u0159\u00edznaky a v z\u00e1va\u017en\u00fdch p\u0159\u00edpadech neurologick\u00e1 onemocn\u011bn\u00ed, jako je meningitida a encefalitida. Pt\u00e1ci \u010dasto p\u016fsob\u00ed jako nositel\u00e9 viru a jsou jeho hostiteli, dokud se nep\u0159enese na jin\u00e1 zv\u00ed\u0159ata nebo lidi prost\u0159ednictv\u00edm kom\u00e1\u0159\u00edch \u0161t\u00edpanc\u016f.<\/p>\n\n
V\u011bdci zjistili, \u017ee ur\u010dit\u00e9 druhy pt\u00e1k\u016f, jako jsou nap\u0159\u00edklad kardin\u00e1lov\u00e9, mohou hr\u00e1t rozhoduj\u00edc\u00ed roli v potla\u010dov\u00e1n\u00ed \u0161\u00ed\u0159en\u00ed viru z\u00e1padn\u00edho Nilu. Na rozd\u00edl od drozd\u016f, kte\u0159\u00ed jsou zn\u00e1mi jako efektivn\u00ed \u201esuper\u0161i\u0159itel\u00e9\u201c viru, maj\u00ed kardin\u00e1lov\u00e9 jedine\u010dnou fyziologickou stavbu, kter\u00e1 z nich d\u011bl\u00e1 m\u00e9n\u011b efektivn\u00ed p\u0159ena\u0161e\u010de.<\/p>\n\n
Studie uk\u00e1zaly, \u017ee kardin\u00e1lov\u00e9 maj\u00ed ni\u017e\u0161\u00ed virovou n\u00e1lo\u017e v krvi ve srovn\u00e1n\u00ed s drozdy. To znamen\u00e1, \u017ee i kdy\u017e se kom\u00e1\u0159i mohou \u017eivit jak kardin\u00e1ly, tak drozdy, je m\u00e9n\u011b pravd\u011bpodobn\u00e9, \u017ee p\u0159enesou virus z kardin\u00e1l\u016f kv\u016fli ni\u017e\u0161\u00ed koncentraci viru.<\/p>\n\n
Je zaj\u00edmav\u00e9, \u017ee v\u011bdci pozorovali sez\u00f3nn\u00ed zm\u011bnu v krmn\u00e9m chov\u00e1n\u00ed kom\u00e1r\u016f v Atlant\u011b. Na za\u010d\u00e1tku roku se kom\u00e1\u0159i \u017eiv\u00ed p\u0159ev\u00e1\u017en\u011b drozdy. Kolem poloviny \u010dervence v\u0161ak p\u0159ech\u00e1zej\u00ed na stravu, kter\u00e1 se skl\u00e1d\u00e1 p\u0159ev\u00e1\u017en\u011b z kardin\u00e1l\u016f. Tato zm\u011bna se shoduje s obdob\u00edm, kdy virus z\u00e1padn\u00edho Nilu obvykle dosahuje vrcholu sv\u00e9ho p\u0159enosov\u00e9ho obdob\u00ed.<\/p>\n\n
V\u011bdci v\u011b\u0159\u00ed, \u017ee p\u0159echod ve strav\u011b kom\u00e1r\u016f z drozd\u016f na kardin\u00e1ly by mohl b\u00fdt kl\u00ed\u010dov\u00fdm faktorem p\u0159i omezov\u00e1n\u00ed \u0161\u00ed\u0159en\u00ed viru z\u00e1padn\u00edho Nilu v Atlant\u011b. Zachov\u00e1n\u00edm lok\u00e1ln\u00edch populac\u00ed kardin\u00e1l\u016f, zejm\u00e9na ve star\u00fdch les\u00edch, kde se jim da\u0159\u00ed, m\u016f\u017ee st\u00e1t pomoci chr\u00e1nit druhy pt\u00e1k\u016f, kter\u00e9 chr\u00e1n\u00ed lidsk\u00e9 populace p\u0159ed virem.<\/p>\n\n
Objev kardin\u00e1l\u016f jako superpotla\u010dovatel\u016f v Atlant\u011b vyvol\u00e1v\u00e1 mo\u017enost, \u017ee i jin\u00e9 druhy pt\u00e1k\u016f v r\u016fzn\u00fdch regionech mohou hr\u00e1t podobnou roli v kontrole p\u0159enosu viru z\u00e1padn\u00edho Nilu. V\u011bdci nyn\u00ed tuto mo\u017enost zkoumaj\u00ed s c\u00edlem identifikovat m\u00edstn\u00ed superpotla\u010dovatele, kte\u0159\u00ed by mohli pomoci zabr\u00e1nit lidsk\u00e9 expozici viru v jin\u00fdch oblastech.<\/p>\n\n
Kardin\u00e1lov\u00e9, kte\u0159\u00ed jsou \u010dasto p\u0159ehl\u00ed\u017eeni v boji proti viru z\u00e1padn\u00edho Nilu, se stali nezn\u00e1m\u00fdmi hrdiny v Atlant\u011b. Jejich jedine\u010dn\u00e1 schopnost potla\u010dovat virus v kombinaci se sez\u00f3nn\u00ed zm\u011bnou v krmn\u00e9m chov\u00e1n\u00ed kom\u00e1r\u016f p\u0159isp\u011bla k omezen\u00ed \u0161\u00ed\u0159en\u00ed nemoci ve m\u011bst\u011b. Zachov\u00e1n\u00edm populac\u00ed kardin\u00e1l\u016f a identifikac\u00ed superpotla\u010dovatel\u016f v jin\u00fdch regionech m\u016f\u017eeme zlep\u0161it na\u0161e strategie pro kontrolu viru z\u00e1padn\u00edho Nilu a ochranu lidsk\u00e9ho zdrav\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"
Kardin\u00e1lov\u00e9: ope\u0159en\u00ed zachr\u00e1nci Atlanty v boji proti viru z\u00e1padn\u00edho Nilu Co je virus z\u00e1padn\u00edho Nilu? Virus z\u00e1padn\u00edho Nilu je kom\u00e1ry p\u0159en\u00e1\u0161en\u00e9 onemocn\u011bn\u00ed, kter\u00e9 m\u016f\u017ee zp\u016fsobovat ch\u0159ipce podobn\u00e9 p\u0159\u00edznaky a v…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[219,3027,21207,11524,21209,21208],"class_list":["post-15961","post","type-post","status-publish","format-standard","hentry","category-biology","tag-ecology","tag-epidemiology","tag-cardinals","tag-disease-control","tag-super-suppressors","tag-west-nile-virus"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=15961"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15961\/revisions"}],"predecessor-version":[{"id":15962,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/15961\/revisions\/15962"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=15961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=15961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=15961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}