Outbreak of Influenza A (H3N2) Variant Virus Infection among Attendees of an Agricultural Fair, Pennsylvania, USA, 2011
Karen K. Wong
, 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)
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Figure
Figure. . . . Epidemic curve, by date of illness onset and case status, for 88 cases of influenza A (H3N2) variant virus infection associated with agricultural Fair A, Pennsylvania, 2011. Day 0 is the first day the fair was open to the public. One suspected case is not shown; the day of illness onset is unknown but <7 days after attending the fair.
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