Abstract:
:Veterinary diagnostic laboratories identify and characterize influenza A viruses primarily through passive surveillance. However, additional surveillance programs are needed. To meet this need, an active surveillance program was conducted at pig farms throughout the midwestern United States. From June 2009 through December 2011, nasal swab samples were collected monthly from among 540 groups of growing pigs and tested for influenza A virus by real-time reverse transcription PCR. Of 16,170 samples, 746 were positive for influenza A virus; of these, 18.0% were subtype H1N1, 16.0% H1N2, 7.6% H3N2, and 14.5% (H1N1)pdm09. An influenza (H3N2) and (H1N1)pdm09 virus were identified simultaneously in 8 groups. This active influenza A virus surveillance program provided quality data and increased the understanding of the current situation of circulating viruses in the midwestern US pig population.
journal_name
Emerg Infect Disjournal_title
Emerging infectious diseasesauthors
Corzo CA,Culhane M,Juleen K,Stigger-Rosser E,Ducatez MF,Webby RJ,Lowe JFdoi
10.3201/eid1906.121637subject
Has Abstractpub_date
2013-06-01 00:00:00pages
954-60issue
6eissn
1080-6040issn
1080-6059journal_volume
19pub_type
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