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Volume 18, Number 12—December 2012
Research

Outbreak of Influenza A (H3N2) Variant Virus Infection among Attendees of an Agricultural Fair, Pennsylvania, USA, 2011

Karen K. WongComments to Author , Adena Greenbaum, Maria E. Moll, James Lando, Erin L. Moore, Rahul Ganatra, Matthew Biggerstaff, Eugene Lam, Erica E. Smith, Aaron D. Storms, Jeffrey R. Miller, Virginia Dato, Kumar Nalluswami, Atmaram Nambiar, Sharon A. Silvestri, James R. Lute, Stephen Ostroff, Kathy Hancock, Alicia Branch, Susan C. Trock, Alexander Klimov, Bo Shu, Lynnette Brammer, Scott Epperson, Lyn Finelli, and Michael A. Jhung
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (K.K. Wong, A. Greenbaum, R. Ganatra, M. Biggerstaff, E. Lam, A.D. Storms, J.R. Miller, K. Hancock, A. Branch, S.C. Trock, A. Klimov, B. Shu, L. Brammer, S. Epperson, L. Finelli, M.A. Jhung); Pennsylvania Department of Health, Harrisburg, Pennsylvania, USA (M.E. Moll, E.E. Smith, J.R. Miller, V. Dato, K. Nalluswami, A. Nambiar, J.R. Lute, S. Ostroff); Allegheny County Health Department, Pittsburgh, Pennsylvania (J. Lando, S.A. Silvestri); and Pennsylvania Department of Agriculture, Harrisburg (E.L. Moore)

Main Article

Table 3

Characteristics of Club X cohort members who attended agricultural Fair A during an outbreak of A(H3N2)v virus infection, Pennsylvania, 2011*

Characteristic Club X cohort, N = 127
Sex

M

 47/127 (37)

F

 80/127 (63)
Case status

Suspected case-patient

 14/127 (11)

Non–case-patient

 113/127 (89)
Age, y
Median (range) 13 (4–19)

<4 y

 2/127 (2)

4–13

 70/127 (55)

14–18

 51/127 (40)

>19

 4/127 (3)
Underlying medical condition 19/124 (15)
Reported any prior influenza vaccination 56/115 (49)
No. days spent at fair, median (range) 9 (1–10)
Exhibited animal at fair 75/125 (60)
Exhibited swine at fair 34/125 (27)
Family owns livestock 83/125 (66)
Family owns swine 33/125 (26)
Reported swine exposure† 100/127 (79)

*Data are no. with characteristic (%) or no. with characteristic/total no. cohort members with data (%) unless otherwise specified. Club X is an agricultural club for children. A(H3N2)v, influenza A (H3N2) variant virus.
†Includes attending swine exhibit, walking near swine exhibit, or touching swine at fair.

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.
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