Emerging Infectious Disease ISSN: 1080-6059

Contagious Period for Pandemic (H1N1) 2009

Gaston De Serres

, Isabelle Rouleau, Marie-Eve Hamelin, Caroline Quach, Danuta Skowronski, Louis Flamand, Nicole Boulianne, Yan Li, Julie Carbonneau, Anne-Marie Bourgault, Michel Couillard, Hugues Charest, and Guy Boivin

Author affiliations: Institut National de Santé Publique du Québec, Quebec City, Quebec, Canada (G. De Serres, I. Rouleau, N. Boulianne, A.-M. Bourgault, M. Couillard, H. Charest), Laval University, Quebec City (G. De Serres, M.-E. Hamelin, L. Flamand, J. Carbonneau, G. Boivin); McGill University–Montreal Children's Hospital, Montreal, Quebec, Canada (C. Quach); British Columbia Centers for Disease Control, Vancouver, British Columbia, Canada (D. Skowronski); Public Health Agency of Canada, Winnipeg, Manitoba, Canada (Y. Li)

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Figure 2

Positive results by PCR and culture for influenza A and pandemic (H1N1) 2009 virus (pH1N1) in 47 household contacts with laboratory-confirmed influenza, by delay between day of symptom onset and day of first swab collection, Quebec City, Quebec, Canada, May 27–July 10, 2009.

Figure 2. Positive results by PCR and culture for influenza A and pandemic (H1N1) 2009 virus (pH1N1) in 47 household contacts with laboratory-confirmed influenza, by delay between day of symptom onset and day of first swab collection, Quebec City, Quebec, Canada, May 27–July 10, 2009.

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