Lab for COVID-19 Nucleic Acid Testing

Source：dahe.cn Published：2021-08-18 18:49

Medical staff work in a lab for COVID-19 nucleic acid testing in Zhengzhou, capital of central China's Henan province, Aug 16, 2021. (Text: Henan Daily Photo: Wang Zheng/Henan Daily)

Editor：Zhao Hanqing