The photo, taken on April 20, shows Linwu County Center for Disease Control and Prevention sampling personnel collecting nucleic acid samples on imported pitayas at a supermarket. Recently, the center has conducted regular nucleic acid tests for cold-chain products, imported fruits, and environmental samples at key venues across the county. The move aims to build a line of defense against COVID-19. (Photo/Chen Weiping)

This article is from the Hunan Provincial Government www.enghunan.gov.cn.

Translator: Xiao Juan

Chinese source: hunantoday