[Introduction]: from 0:00 to 24:00 on April 15, 12 new asymptomatic infected persons were added. All of them were found for active investigation. 37 close contacts had conducted centralized isolation medical observation according to relevant regulations.

From 0:00 to 24:00 on April 15, 12 asymptomatic infected persons were added, one of which was asymptomatic infected from the United States detected at the port of entry, 11 asymptomatic infected persons were investigated and found from close contacts who had been included in isolated medical observation (2 were Chinese and 9 were foreign);1 was an employee of turquoise Tavern, and 5 had visited Tongtong Trade City, the vast trade city, Guo Tai trade city and other high-risk places with more cases reported recently, and the other 5 people are close contacts of imported cases abroad.

All the above asymptomatic infected persons were found for active investigation, and 37 close contacts had been observed in centralized isolation medicine according to relevant regulations.

The relevant living places and activity places involved in the case have been terminally disinfected, and the environmental samples are all negative. The same measures as those of confirmed cases are implemented for asymptomatic infected persons, all of which are treated separately in designated hospitals.

If you reply to [asymptomatic], you can query the data and isolation requirements of asymptomatic infected persons in Shanghai, Shanghai and the whole country.

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