Beware the birds

时间:2019-03-06 05:19:05166网络整理admin

By Debora MacKenzie THE bird virus that killed seven New Yorkers last year has now spread all over the Americas, say US researchers. They warn that the Gulf coast of the US will probably see the next outbreak of West Nile virus. Despite the threat, authorities in the US have so far failed to provide the research funding to keep tabs on the virus in wild birds. The scientists say that scrupulous monitoring of bird populations is needed,