According to the office of the leading group office of pneumonia prevention and control work in New Coronavirus, Ningbo, Zhejiang, 1 people in Zhenhai District were screened positive and the results were positive. At the same time, four family members of the primary screening positive infected persons were urgently investigated and sampled. The results showed that two were positive, their mother and wife respectively, and the nucleic acid test of two children was negative. At present, 3 cases of positive infection have been sent to designated hospitals for treatment.