Swine Influenza

Recent News

Sep 25, 2013

H3N2v outbreak profile details risks, pig exposures

Young kids and those with underlying conditions were at greatest risk for more severe infections.

Sep 16, 2013

News Scan for Sep 16, 2013

Valley fever in California
Arkansas H1N1v cases
FAO sounds H7N9, H5N1 warning
Minimum infectious H1N1 dose
Jul 05, 2013

Flu Scan for Jul 05, 2013

CDC H3N2v advisory for providers
Swine vaccine and H3N2v
Jul 03, 2013

Indiana reports 8 more H3N2v infections

Officials in Indiana report that 8 people are newly infected with the H3N2v flu virus.

Jun 27, 2013

Indiana reports four fair-linked H3N2v cases

Indiana officials reported four H3N2v infections in people who attended the same county fair.

Apr 02, 2013

H5N1 cases dropped in 2012, but fatality rate rose

(CIDRAP News) – The world registered fewer human infections with H5N1 avian influenza in 2012, but the fatality rate was a little higher than in previous years, the World Health Organization (WHO) noted in a recent review of the year's data.

Oct 25, 2012

Study: Fair-related swine and human H3N2 viruses closely match

(CIDRAP News) – Researchers report that swine and human influenza A/H3N2 viruses associated with an Ohio county fair held in July make a nearly perfect genetic match, suggesting that there is almost no biological barrier to prevent such viruses from passing between humans and pigs.

Resources & Literature

Recent Literature

Anderson TK, Nelson MI, Kitikoon P, et al. Population dynamics of cocirculating swine influenza A viruses in the United States from 2009 to 2012. Influenza Other Respir Viruses 2013 (published online Nov 14) 

Detmer SE, Gunvaldsen RE, Harding JC. Comparison of influenza A virus infection in high- and low-birth-weight pigs using morphometric analysis. Influenza Other Respir Viruses 2013 (published online Nov 14)

Diaz A, Allerson M, Culhane M, et al. Antigenic drift of H1N1 influenza A virus in pigs with and without passive immunity. Influenza Other Respir Viruses 2013 (published online Nov 14)

Forberg H, Hauge AG, Gjerset B, et al. Swine influenza in Norway: a distinct lineage of influenza A(H1N1)pdm09 virus. Influenza Other Respir Viruses 2013 (published online Nov 14)

Hause BM, Collin EA, Liu R, et al. Characterization of novel influenza virus in cattle and swine: proposal for a new genus in the Orthomyxoviridae family. mBio 2014 Mar 4;5(2):e00031

He L, Zhao G, Zhong L, et al. Isolation and characterization of two H5N1 influenza viruses from swine in Jiangsu province of China. Arch Virol 2013 (published online Jul 9)

Kim J, Lee I, Park S, et al. Phylogenetic analysis of a swine influenza A(H3N2) virus isolated in Korea in 2012. PLoS One 2014 Feb 11;9(2):e88782

Kobayashi M, Takayama I, Kageyama T, et al. Novel reassortant influenza A(H1N2) virus derived from A(H1N1)pdm09 virus isolated from swine, Japan, 2012. Emerg Infect Dis 2013 (published online Nov 19)

Komadina N, McVernon J, Hall R, et al. A historical perspective of influenza A(H1N2) virus. Emerg Infect Dis 2013 (published online Dec 9)

Masic A, Hyun-Mi P, Zhou Y. An eight-segment swine influenza virus harbouring H1 and H3 hemagglutinins is attenuated and protective against H1N1 and H3N2 subtypes in pigs. J Virol 2013 (published online Jul 10)

Morens DM, Taubenberger JK. A possible outbreak of swine influenza, 1892. (Commentary) Lancet Infect Dis 2013 (published online Nov 28)

Pascua PNQ, Song MS, Kwon HI, et al. The homologous tripartite viral RNA polymerase of A/swine/Korea/CT1204/2009(H1N2) influenza virus synergistically drives efficient replication and promotes respiratory-droplet transmission in ferrets. J Virol 2013 (published online Jul 17)

Pomorska-Moi M, Krzystof K, Pejsak Z, et al. Analysis of the acute-phase protein response in pigs to clinical and subclinical infection with H3N2 swine influenza virus. Influenza Other Respi Viruses 2013 (published online Nov 7)

Trebbien R, Bragstad K, Larsen LE, et al. Genetic and biological characterisation of an avian-like H1N2 swine influenza virus generated by reassortment of circulating avian-like H1N1 and H3N2 subtypes in Denmark. Virol J 2013 (published online Sep 18) 

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