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May 18, 2009. Novel 2009 Influenza A/H1N1 Case Counts in Pennsylvania . * Bold = New County. Novel 2009 Influenza A/H1N1 Confirmed and Probable Cases in Pennsylvania May 18, 2009. Confirmed Cases. Probable Cases.
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May 18, 2009 Novel 2009 Influenza A/H1N1 Case Counts in Pennsylvania * Bold = New County
Novel 2009 Influenza A/H1N1 Confirmed and Probable Cases in Pennsylvania May 18, 2009 Confirmed Cases Probable Cases