I was just reading a thread on Shanghai's Covid timeline and found this
can it be confirmed that 97% of the covid cases are found in isolated quarantine sites?
Not really. It just means that cases are found upon isolated lock down sites. Three different categories of classification. Lock down, control and precaution. Shanghai was under a total lock down before. But more and more residential compounds, villages, and business locations have no cases for 7 days or 14 days, these places would be re-categorized as control or precaution. So only finding cases for lock down and high risk groups just mean they didn't find any cases from control or precaution villages, compounds or business locations.
The city reported 1,189 locally transmitted COVID-19 cases, 25,141 local asymptomatic infections and one imported patient on Tuesday, said the Shanghai Health Commission on Wednesday morning.
Of all the local infections, 23 confirmed patients were previously asymptomatic infections. Another 867 confirmed patients and 24,500 asymptomatic cases were detected during central quarantine, while the rest were found in the screening of high-risk people.
1,189 local cases
The first 867 patients tested positive during central quarantine.
The 868th to 1,166th patients tested positive during the screening of high-risk people.
The 1,167th to 1,189th patients used to be asymptomatic infections.
A total of 878 people who had links with them have been put under quarantine.
Local asymptomatic infections
The first 24,500 infections tested positive during central quarantine while the rest 641 tested positive when screened as high-risk groups.
A total of 1,897 people who had links with them have been placed under observation.