Guo Yanhong, ombudsman of the National Health Commission's Medical Administration and Hospital Administration Bureau, said at a press conference on the State Council's joint prevention and control mechanism held on May 23 that although the specificity of China's nucleic acid testing is 100%, the laboratory may False positives are caused by contamination, and individual laboratories that do not strictly follow the prescribed work procedures will also cause false positives.

However, this does not mean that the sensitivity of nucleic acid testing to the Ormicon strain has decreased.

The use of nucleic acid detection can detect infected people as early as possible, lock the scope of infection, and play a key role in the "outpost" of epidemic prevention and control.

(Produced by Li Jiali)

Responsible editor: [Li Ji]