Persistence of highly pathogenic avian influenza viruses in natural ecosystems.
Persistence of highly pathogenic avian influenza viruses in natural ecosystems.
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DOI:
10.3201/eid1607.090389
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发表时间:
2010-07
影响因子:
11.8
通讯作者:
Gauthier-Clerc M
中科院分区:
文献类型:
--
作者:
Lebarbenchon C;Feare CJ;Renaud F;Thomas F;Gauthier-Clerc M
Differences in virus evolution may explain virulence heterogeneity. Understanding of ecologic factors favoring emergence and maintenance of highly pathogenic avian influenza (HPAI) viruses is limited. Although low pathogenic avian influenza viruses persist and evolve in wild populations, HPAI viruses evolve in domestic birds and cause economically serious epizootics that only occasionally infect wild populations. We propose that evolutionary ecology considerations can explain this apparent paradox. Host structure and transmission possibilities differ considerably between wild and domestic birds and are likely to be major determinants of virulence. Because viral fitness is highly dependent on host survival and dispersal in nature, virulent forms are unlikely to persist in wild populations if they kill hosts quickly or affect predation risk or migratory performance. Interhost transmission in water has evolved in low pathogenic influenza viruses in wild waterfowl populations. However, oropharyngeal shedding and transmission by aerosols appear more efficient for HPAI viruses among domestic birds.
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影响因子:
11.8
作者:
Brown JD;Stallknecht DE;Beck JR;Suarez DL;Swayne DE
通讯作者:
Swayne DE
影响因子:
11.8
作者:
Keawcharoen, Julthatip;van Riel, Debby;van Amerongen, Geert;Bestebroer, Theo;Beyer, Walter E.;van Lavieren, Rob;Osterhaus, Albert D. M. E.;Fouchier, Ron A. M.;Kuiken, Thijs
通讯作者:
Kuiken, Thijs
影响因子:
4.9
作者:
Lebarbenchon, Camille;Brown, Sam P.;Thomas, Frederic
通讯作者:
Thomas, Frederic
DOI:
10.1073/pnas.0511120103
发表时间:
2006-02-21
影响因子:
11.1
作者:
Chen, H;Smith, GJD;Guan, Y
通讯作者:
Guan, Y
影响因子:
4.8
作者:
Feare, Chris J.;Yasue, Mai
通讯作者:
Yasue, Mai