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 case of West Nile virus reported
2011年9月1日星期四
First case of West Nile virus reported
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 case of West Nile virus reported
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