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