2011年8月12日星期五
Ontario warns of West Nile, Lyme disease risk
So far this year, 43 mosquito pools have been found to contain the virus, more than in the same period for the last four years. The symptoms of West Nile are usually mild and include fever, headache, body ache, nausea, vomiting and rashes. ... Ontario warns of West Nile, Lyme disease risk
订阅:
博文评论 (Atom)
没有评论:
发表评论