Zhongshan carried out city-wide nucleic acid test in three waves starting on June 6. Despite the scorching sun, all 25 towns and sub-districts in Zhongshan sprung in action and the testing received strong support from the public.

Hundreds of nucleic acid sampling sites were set up with lightning speed. Thousands of medical staff and countless volunteers, community workers and Party members worked on the front lines to complete the nucleic acid test for millions of people.

A medical worker takes samples while holding a flashlight, in Zhuyuan New Village in East District. [Photo by Miao Xiaojian]

Soaked in sweat, the hands of a medical worker are white and wrinkled. [Photo by Miao Xiaojian]

A medical worker who just takes off her protective clothing is soaked with sweat. [Photo by Miao Xiaojian]

A student salutes the medical staff at Banfu Primary School. [Photo by Miao Xiaojian]

Citizens queue up at the nucleic acid test site area A of Central Power Plaza. [Photo by Yu Zhaoyu]

Vats of ice cubes are prepared to cool down the medical staff wearing protective clothing. [Photo by Miao Xiaojian]

Medical staff provide door-to-door nucleic acid testing for the elderly. [Photo by Tan Wansi]

At the Zimaling Park testing site, volunteers guide citizens into the testing area. [Photo by Miao Xiaojian]

Volunteers take time to have a simple meal. [Photo by Wen Zhicheng]