封控小区为何还会出现阳性感染者？上海回应三方面原因   2022-04-15

 

The time-lapse for screening data, family transmission and product delivery logistics are the main reasons for the rising number of local COVID-19 cases, even after Shanghai's lockdown and other control measures.Shanghai has imposed its phased lockdown and follow-up control measures since March 28 when residents were asked to stay at home in most local communities.However, the city has been reporting 20,000-plus daily new cases for almost a week.

 

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