1. These authors contributed equally to this work
2. Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang China
3. Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
4. Nanxun District Center for Disease Control and Prevention, Huzhou, Zhejiang, China
5. Wuxing District Center for Disease Control and Prevention, Huzhou, Zhejiang, China
6. Deqing County Center for Disease Control and Prevention, Huzhou, Zhejiang, China
7. Changxing County Center for Disease Control and Prevention, Huzhou, Zhejiang, China
8. Anji County Center for Disease Control and Prevention, Huzhou, Zhejiang, China