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Volume 18, Number 2—February 2012

Dispatch

Oseltamivir-Resistant Pandemic (H1N1) 2009 Virus Infections, United States, 2010–11

Aaron D. Storms, Larisa V. Gubareva, Su Su, John T. Wheeling, Margaret Okomo-Adhiambo, Chao-Yang Pan, Erik Reisdorf, Kirsten St. George, Robert Myers, Jason T. Wotton, Sara Robinson, Brandon Leader, Martha Thompson, Marjorie Shannon, Alexander Klimov, Alicia M. FryComments to Author , and for the US Antiviral Resistance Surveillance Working Group
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.D. Storms, L.V. Gubareva, S. Su, J.T. Wheeling, M. Okomo-Adhiambo, A. Klimov, A.M. Fry); California Department of Public Health, Sacramento, California, USA (C.-Y. Pan); Wisconsin State Laboratory of Hygiene, Madison, Wisconsin, USA (E. Reisdorf); New York State Department of Health, Albany, New York, USA (K. St. George); Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA (R. Myers); Minnesota Department of Health, Saint Paul, Minnesota, USA (J.T. Wotton); Maine Department of Health and Human Services, Augusta, Maine, USA (S. Robinson); Washington State Department of Health, Shoreline, Washington, USA (B. Leader); Texas Department of State Health Services, Austin, Texas, USA (M. Thompson); Delaware Health and Social Services, New Castle, Delaware, USA (M. Shannon)

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Figure

Geographic distribution of oseltamivir-resistant pandemic (H1N1) 2009 viruses in the United States, October 1, 2010–July 31, 2011. Numerators are number of oseltamivir-resistant viruses identified by state public health laboratories; denominators are number of pandemic (H1N1) 2009–positive specimens submitted by each state for susceptibility testing. Gray shading indicates states that had >1 infection with oseltamivir-resistant virus.

Figure. Geographic distribution of oseltamivir-resistant pandemic (H1N1) 2009 viruses in the United States, October 1, 2010–July 31, 2011. Numerators are number of oseltamivir-resistant viruses identified by state public health laboratories; denominators are number of pandemic (H1N1) 2009–positive specimens submitted by each state for susceptibility testing. Gray shading indicates states that had >1 infection with oseltamivir-resistant virus.

Main Article

1Additional members of the US Antiviral Resistance Surveillance Working Group who contributed data are listed at the end of this article.

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