On October 16, Ma Lixin, Deputy Secretary of the Party Group of the Shandong Provincial Health Commission and Secretary of the Party Committee of the Provincial Center for Disease Control and Prevention, announced that the Chinese Center for Disease Control and Prevention and the Shandong Provincial Center for Disease Control and Prevention have carried out sequencing and comparison of the results of viral nucleic acid sequences. It was confirmed that the specimens of the case were highly homologous with the virus gene sequences of the specimens of Dong Mo and Chen who were infected in the Qingdao port epidemic in September, and the source of infection came from the above two persons.
On-site epidemiological investigations and evidence indicate that there is no temporal and spatial correlation between the cases and contacts of this epidemic and the persons involved in the Qingdao port epidemic in September outside the hospital.
Surveillance video from Qingdao Chest Hospital confirmed that the two people infected with the Qingdao Port epidemic left the closed ward and went to the CT room for inspection during the isolation and observation of the Qingdao Chest Hospital. The CT room was infected with the virus due to irregular prevention and disinfection , And then infected the inpatient Li Moumou and the accompanying Niu Moumou who went to the same CT room for examination the next morning, and brought the virus into the tuberculosis area, causing the epidemic to spread in the hospital.
In summary, the transmission chain and evidence chain of this epidemic is complete. It is the clustered epidemic in the hospital caused by the sharing of CT rooms with patients in general wards during the hospitalization of the infected persons in Qingdao Port. No community transmission occurred.
Editor in charge: [Wang Kai]