Spread and persistence of influenza A viruses in waterfowl hosts in the North American Mississippi migratory flyway.

ABSTRACT:

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While geographic distance often restricts the spread of pathogens via hosts, this barrier may be compromised when host species are mobile. Migratory waterfowl in the order Anseriformes are important reservoir hosts for diverse populations of avian-origin influenza A viruses (AIVs) and are assumed to spread AIVs during their annual continental-scale migrations. However, support for this hypothesis is limited, and it is rarely tested using data from comprehensive surveillance efforts incorporating both the temporal and spatial aspects of host migratory patterns. We conducted intensive AIV surveillance of waterfowl using the North American Mississippi Migratory Flyway (MMF) over three autumn migratory seasons. Viral isolates (n = 297) from multiple host species were sequenc

SUBMITTER: Fries AC 

PROVIDER: S-EPMC4442537 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature