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Volume 18, Number 12—December 2012

Subclinical Influenza Virus A Infections in Pigs Exhibited at Agricultural Fairs, Ohio, USA, 2009–2011

Andrew S. BowmanComments to Author , Jacqueline M. Nolting, Sarah W. Nelson, and Richard D. Slemons
Author affiliations: The Ohio State University, Columbus, Ohio, USA

Main Article

Table 3

Characterization of HA, NA, and M gene segments of influenza virus A from agricultural fairs with >1 pig testing positive for influenza virus A, Ohio, USA, 2009–2011*

Fair Year
2009 2010 2011
A H1N2 Negative Negative
B H3N2 Negative H3N2
C H3N2 H3N2 H1N2, H3N2
D Negative H3N2 H1N2, H3N2
E Negative H3N2 Negative
F Negative Negative H3N2
G Negative H3N2
H H1N2, H3N2

*Fair G did not participate in 2009; fair H did not participate in 2009 or 2010. Boldface indicates North American triple-reassortant swine-origin influenza A virus M gene segment; underlining indicates influenza A(H1N1)pdm09 virus M gene segment. HA, hemagglutinin; NA, neuraminidase; M, matrix.

Main Article

Page created: November 21, 2012
Page updated: November 21, 2012
Page reviewed: November 21, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.