What causes the new outbreak

Novel coronavirus pneumonia epidemic prevention and control work in Beijing on June 16th evening, the 121st press conference, Chen Bei, Deputy Secretary General of the Beijing municipal government, announced that the epidemic situation in Beijing was very severe. After the study, it was decided that the response level of public health emergencies in Beijing would be adjusted to two level in June 16th.
From June 11 to June 16, 24:00 in Beijing, 116 cases of positive nucleic acid test, 106 confirmed cases and 10 asymptomatic infections were reported, all of which were directly or indirectly related to the new wholesale market, affecting 9 blocks and 28 streets. The infection was caused by interpersonal transmission or environmental pollution of goods, and there was a clear continued infection among the close contacts.