Go on. Nucleic acid detection is to detect the pathogen nucleic acid of various body fluid samples or tissue samples by molecular biology technology to determine whether pathogen infection occurs. Nucleic acid was detected in Chishui Village, Liusha West Street, Puning City, Jieyang City, Guangdong Province. According to the announcement of the epidemic prevention and control department of Puning City, as of June 5438+1October 2 1 day, all foreigners must carry out nucleic acid testing according to regulations.