Does Tianjin Hotel want nucleic acid? Now

Don't. On February 9, 65438, Tianjin Hotel still needs to do nucleic acid testing, and it needs to have a negative certificate of nucleic acid testing within 72 hours. After February 9, 65438, 65438, Tianjin will no longer check negative nucleic acid certificates in Lv Wen hotels and other places. Nucleic acid detection is to determine whether the patient is infected by COVID-19 by detecting whether there is nucleic acid of foreign invasive virus in respiratory tract samples, blood or feces. Therefore, once the nucleic acid is "positive", it can prove that there is a virus in the patient.