A resident prepares to take nucleic acid testing in Shanghai, July 5, 2022. (Photo: China News Service/Yin Liqin) Shanghai will conduct mass nucleic acid testing from Tuesday to Thursday in areas related to recent local COVID-19 cases.

A woman takes nucleic acid testing in Shanghai, July 5, 2022. (Photo: China News Service/Yin Liqin)

A father takes his child for nucleic acid test in Shanghai, July 5, 2022. (Photo: China News Service/Yin Liqin)

Residents wait to take nucleic acid testing in Shanghai, July 5, 2022. (Photo: China News Service/Yin Liqin)