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Volume 18, Number 9—September 2012
Dispatch

Influenza A(H1N1)pdm09 Virus among Healthy Show Pigs, United States

Gregory C. GrayComments to Author , Jeffrey B. Bender, Carolyn B. Bridges, Russell F. Daly, Whitney S. Krueger, Michael J. Male, Gary L. Heil, John A. Friary, Robin B. Derby, and Nancy J. Cox
Author affiliations: University of Florida, Gainesville, Florida, USA (G.C. Gray, W.S. Krueger, G.L. Heil, J.A. Friary, R.B. Derby); University of Minnesota, St. Paul, Minnesota, USA (J.B. Bender); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (C.B. Bridges, N.J. Cox); South Dakota State University, Brookings, South Dakota, USA (R.F. Daly); and University of Iowa, Iowa City, Iowa, USA (M.J. Male)

Main Article

Table

Characteristics of 123 persons enrolled in study of influenza A virus among show pigs, Minnesota and South Dakota state fairs, 2008 and 2009

Characteristic No. (%)
State fair where enrolled

Minnesota

 90 (73.2)

South Dakota

 33 (26.8)
Year enrolled

2008

 48 (39.0)

2009

 75 (61.0)
Age group, y*

<8

 29 (23.6)

18–39

 37 (30.1)

40–59

 46 (37.4)

>60

 8 (6.5)
Sex*

M

 86 (69.9)

F

 35 (28.5)
Work performed in the last 30 d†

Unemployed

 8 (6.5)

Farmer

 108 (87.8)

Swine farmer

 100 (81.3)

Government employee

 8 (6.5)

Veterinarian/veterinary assistant

 2 (1.6)
Receipt of vaccination for human influenza in past 2 y*

Yes

 35 (28.5)

No

 76 (61.8)

Unknown

 7 (5.7)
Respiratory illness in past 12 mo*

Yes

 64 (52.0)

No

 55 (44.7)

Unknown

 2 (1.6)
Worked with swine, y*

<1

 3 (2.4)

>1–4

 10 (8.1)

5–10

 39 (31.7)

>10

 50 (40.7)

*These covariates have missing data.
†Responses are not mutually exclusive.

Main Article

Page created: August 15, 2012
Page updated: August 15, 2012
Page reviewed: August 15, 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.
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