Can I take part in nucleic acid screening when staying in a hotel in Tianjin?

Of course. Tianjin, referred to as Jingu and Jinmen for short, is a provincial-level administrative region, municipality directly under the Central Government, national central city and megacity in People's Republic of China (PRC), a gateway to the opening up of northern China approved by the State Council, and a shipping center, logistics center and modern manufacturing base in northern China. You can take part in nucleic acid screening when staying in a hotel in Tianjin, and you only need to show your health code to make an account. Nucleic acid detection generally refers to nucleic acid detection methods. The substance of nucleic acid detection is the nucleic acid of virus. 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.