Chinanews, Yingkou, May 15 (Reporter Yang Yi) On May 15, Li Yan, deputy director of the Yingkou Center for Disease Control and Prevention, said in an interview with a reporter from Chinanews.com that none of the five cases of new coronary pneumonia infection in Yingkou, Liaoning had been vaccinated. New crown vaccine.
At present, the local area is actively carrying out traceability work, sorting out the number of circulations, tracing the source through epidemiological investigations and gene sequences, and identifying "patient zero".
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