There are 5 positive patients in Changchun Infectious Disease Hospital. How did they get infected?

The local authorities have not announced the cause of their infection. It is said that the traceability work is still in progress.

Changchun Infectious Disease Hospital found five positive patients when conducting nucleic acid tests on doctors and patients in the hospital, but did not disclose the causes of infection of these five positive patients, only indicating that these five people had never left the hospital in the past seven days and had no track of social activities. It is said that the local tracing work is still going on in an orderly way, and it is impossible to determine the source of infection of these five positive people. ?

After five positive cases appeared, we were not sure how they were infected, so we could not take further preventive measures. Some people speculate that it was transmitted to them through pre-sent express delivery or daily necessities, but this has not been ascertained. If it is found that it is spread in this way, then the delivery of express delivery or daily necessities is related to society, and there may be confirmed cases in society. It is necessary to trace the source as soon as possible, find the transmission chain, and control the epidemic within the controllable range.

Others speculate that these five positive cases were really infected by nurses or logistics personnel, so they can't be regarded as a real social clearance. We must find patient 0 and find the transmission chain hidden in society. Only by breaking the hidden transmission chain can we stop the further spread of the epidemic. It is believed that the local disease control and epidemic prevention department will pay attention to this problem. After five positive infected people appear, they will drain the source as soon as possible, find the source of infection, control the epidemic from the root and avoid the spread of the epidemic in a large area. ?

After 5 positive cases appeared in the local area, the hospital involved closed down for rectification and no longer accepted other patients. Moreover, the staff in the hospital also carried out a comprehensive nucleic acid test, and the environment in the hospital was also professionally disinfected, hoping to get rid of the virus as soon as possible and prevent the epidemic from spreading further. The emergence of these five positive infected people also shows that the local epidemic prevention and control situation is still grim, and we must not be careless, let alone relax, to prevent the epidemic from coming back. ?