Population dynamics of cocirculating swine influenza A viruses in the United States from 2009 to 2012.

ABSTRACT:

Background

Understanding the ecology and evolution of influenza A viruses (IAV) in mammalian hosts is critical to reduce disease burden in production animals and lower zoonotic infection risk in humans. Recent advances in influenza surveillance in US swine populations allow for timely epidemiological, phylogenetic, and virological analyses that monitor emergence of novel viruses and assess changes in viral population dynamics.

Methods

To better understand IAV in the North American swine population, we undertook a phylogenetic analysis of 1075 HA, 1049 NA, and 1040 M sequences of IAV isolated from US swine during 2009-2012 through voluntary and anonymous submissions to the US Department of Agriculture IAV swine surveillance system.

Results

Analyses revealed changes in

SUBMITTER: Anderson TK 

PROVIDER: S-EPMC5655888 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature