2011年7月23日星期六
Positive Mosquito Samples Discovered
July 20, 2011 - The District received confirmation on Wednesday that another mosquito sample has tested positive for West Nile virus. These mosquitoes were collected using a gravid trap (used for collecting mosquitoes looking for a place to lay eggs) ... Positive Mosquito Samples Discovered
订阅:
博文评论 (Atom)
没有评论:
发表评论