A child takes nucleic acid test in Changning Community in Hefei National High-tech Industry Development Zone on April 24. [Photo/WeChat ID: hefeigaoxinfabu]

Hefei National High-tech Industry Development Zone in Hefei, East China's Anhui province, carried out a new round of mass nucleic acid testing on residents on April 24.

The zone has taken multiple preemptive measures to protect residents from the virus. For example, the zone has organized trainings for volunteers on how to register residents' information for nucleic acid testing, which partly contributed to the successful first round of mass testing on April 21.

Nucleic acid testing has been upgraded in the zone. Sheng Yanan, a volunteer in Shulu Community, said the efficiency of the new round of nucleic acid testing has been further improved.

Medical workers register the information of residents at a nucleic acid test site in Chengxiqiao Community in Hefei National High-tech Industry Development Zone on April 24. [Photo/WeChat ID: hefeigaoxinfabu]

Residents line up to take nucleic acid tests in Hefei National High-tech Industry Development Zone on April 24. [Photo/WeChat ID: hefeigaoxinfabu]