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差分

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B型インフルエンザは[[ヒト]]と[[アシカ亜目]]のみに感染して<ref name="pmid10807575">{{cite journal | author = Osterhaus AD, Rimmelzwaan GF, Martina BE, Bestebroer TM, Fouchier RA | title = Influenza B virus in seals | journal = Science | volume = 288 | issue = 5468 | pages = 1051–3 | year = 2000 | pmid = 10807575 | doi = | issn = }}</ref>、[[インフルエンザ]]を引き起こす。構造的に類似して共に[[抗原連続変異]]と[[遺伝子再集合]]が認められる[[A型インフルエンザウイルス]]と比較してB型インフルエンザの[[パンデミック]]が発生しないのは宿主域が狭いためであると考えられている<ref name="pmid11779385">{{cite journal | author = Hay AJ, Gregory V, Douglas AR, Lin YP | title = The evolution of human influenza viruses | journal = Philos. Trans. R. Soc. Lond., B, Biol. Sci. | volume = 356 | issue = 1416 | pages = 1861–70 | year = 2001 | pmid = 11779385 | doi = 10.1098/rstb.2001.0999}}</ref><ref name="pmid15258979">{{cite journal | author = Matsuzaki Y, Sugawara K, Takashita E, Muraki Y, Hongo S, Katsushima N, Mizuta K, Nishimura H | title = Genetic diversity of influenza B virus: the frequent reassortment and cocirculation of the genetically distinct reassortant viruses in a community | journal = J. Med. Virol. | volume = 74 | issue = 1 | pages = 132–40 | year = 2004 | pmid = 15258979 | doi = 10.1002/jmv.20156}}</ref><ref name="pmid10196339">{{cite journal | author = Lindstrom SE, Hiromoto Y, Nishimura H, Saito T, Nerome R, Nerome K | title = Comparative analysis of evolutionary mechanisms of the hemagglutinin and three internal protein genes of influenza B virus: multiple cocirculating lineages and frequent reassortment of the NP, M, and NS genes | journal = J. Virol. | volume = 73 | issue = 5 | pages = 4413–26 | year = 1999 | pmid = 10196339 | doi = }}</ref>。
A型インフルエンザよりも、B型インフルエンザの方が軽い。
 
== 脚注 ==