Sampling time: May 22 06:00-12:00
Sampling range: Langya Township, Wangxi Township, Fresh Duo Township, Dingyuan Township, Baozhen Township, Xinshi Township, Youqing Township, and other 7 townships of all residents.
2, the second batch:
Sampling time: May 23rd 08:00-18:00;
Sampling range: all teachers and students of the county education system staff.
3, the third batch:
Sampling time: May 24 07:00-12:00;
Sampling range: Wenchong Township, Yongxing Township, Guifu Township, Yafeng Township, Jingbian Township, Qingxi Field Township, Limba Township, Tuxi Township, Sanhui Township, Fungle Township, Sanpan Township, Wanshou Township, Longfeng Township, Zhongtan Township, Qinglong Township, Qubei Township, Lifu Township, Dong'an Township, Lidu Township All the residents of 27 townships, including, Rolling Refugee Township, Haili Township, Anbei Township, Jinyan Township, Dayi Township, Juguang Township, Wangjiang Township, and Gongshi Township.
4, the fourth batch:
Sampling time: May 24, 16:00-21:00;
Sampling range: all residents of the three streets of Qunan Street, Qujiang Street, Tianxing Street, and the Quxian Economic Development Zone.