![](http://www.ecns.cn/hd/2020/10/12/3d418a129d314d1e8a58aafa49af5199.jpg)
The Chinese city of Qingdao is testing its entire population for Covid-19 over a period of five days. The mass testing comes after a dozen cases were found linked back to a hospital treating coronavirus patients arriving from overseas. (Photo: China News service/Hu Yaojie)
![](http://www.ecns.cn/hd/2020/10/12/8e572ba2cc314c87a833b3161789806c.jpg)
The Chinese city of Qingdao is testing its entire population for Covid-19 over a period of five days. The mass testing comes after a dozen cases were found linked back to a hospital treating coronavirus patients arriving from overseas. (Photo: China News service/Hu Yaojie)
![](http://www.ecns.cn/hd/2020/10/12/e2eefa9b4918423287de8bb871ddeaa1.jpg)
The Chinese city of Qingdao is testing its entire population for Covid-19 over a period of five days. The mass testing comes after a dozen cases were found linked back to a hospital treating coronavirus patients arriving from overseas. (Photo: China News service/Hu Yaojie)
![](http://www.ecns.cn/hd/2020/10/12/1671cf97ebc845a78cf73054e69a22ba.jpg)
The Chinese city of Qingdao is testing its entire population for Covid-19 over a period of five days. The mass testing comes after a dozen cases were found linked back to a hospital treating coronavirus patients arriving from overseas. (Photo: China News service/Hu Yaojie)