This year, mosquito samples in 54 counties have been identified with West Nile virus. It was first identified in Pennsylvania in 2000. Since then, the virus has been found in all areas of the state, returning each summer. Recent statistics show: First Probable Case of Human West Nile Disease in 2011
2011年8月30日星期二
First Probable Case of Human West Nile Disease in 2011
This year, mosquito samples in 54 counties have been identified with West Nile virus. It was first identified in Pennsylvania in 2000. Since then, the virus has been found in all areas of the state, returning each summer. Recent statistics show: First Probable Case of Human West Nile Disease in 2011
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