H1N1 flu virus is going to stay and become one of human seasonal flu strain
所有跟贴·加跟贴·新语丝读书论坛
送交者: JZ 于 2009-05-04, 14:27:13:
Most states now have H1N1 cases and so far the symptoms are mild. Vaccine is being developed. So, make sure to have a flu shot this fall.
所有跟贴:
加跟贴