Pandemic (H1N1) 2009 and Seasonal Influenza A (H1N1) Co-infection, New Zealand, 2009
Matthew Peacey , Richard J. Hall, Stephanie Sonnberg, Mariette Ducatez, Shevaun Paine, Mackenzie Nicol, Jacqui C. Ralston, Don Bandaranayake, Virginia Hope, Richard J. Webby, and Sue Huang
Author affiliations: Author affiliations: The Institute of Environmental Science and Research, Upper Hutt, New Zealand (M. Peacey, R.J. Hall, S. Paine, M. Nicol, J.C. Ralston, D. Bandaranayake, V. Hope, S. Huang); St. Jude Children’s Research Hospital, Memphis, Tennessee, USA (S. Sonnberg, M. Ducatez, R.J. Webby); Australian National University, Canberra, Australian Capital Territory, Australia (S. Paine)
Figure. Co-infection during cocirculation of seasonal influenza A (H1N1) and pandemic (H1N1) 2009 viruses, New Zealand, 2009. Red line indicates pandemic (H1N1) 2009 viruses; black line indicates seasonal influenza A (H1N1) viruses. The gray shaded area indicates weeks in which the co-infections occurred; numbers above the graph indicate number of co-infections for that week: 1 co-infection in week 24, 2 in week 25, 8 in week 26, and 2 in week 27.
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