哈哈哈,楼主不懂得话可以问google Typically, flu season begins in October and peaks between December and February. However, CDC data shows that the United States is currently experiencing a late-season increase in flu cases, with the flu positivity test rate reaching almost 10% in mid-April.
流感季就是从秋天开始到第二年春天。。。
现在是夏天 为啥会有很多人得流感
哈哈哈,楼主不懂得话可以问google
Typically, flu season begins in October and peaks between December and February. However, CDC data shows that the United States is currently experiencing a late-season increase in flu cases, with the flu positivity test rate reaching almost 10% in mid-April.
4月底流感季节结束