China has such technology that they don't need to be lock down.
You can protect yourself and help prevent spreading the virus to others if you:
Do:
Wash your hands regularly for 20 seconds, with soap and water or alcohol-based hand rub
Cover your nose and mouth with a disposable tissue or flexed elbow when you cough or sneeze
Avoid close contact (1 meter or 3 feet) with people who are unwell
Stay home and self-isolate from others in the household if you feel unwell
It’s time to relax the lockdown, but we need to be alert for a potential second wave of infections,” says Ben Cowling, an epidemiologist at the University of Hong Kong, who will be following the situation in China. If a second wave comes, Cowling would expect to see it emerge by the end of April.
But some researchers say that the situation in China is different because its government acted aggressively, using social-distancing measures to slow down the spread and extensive testing and isolating of infected people to stamp out potential transmission sources. This strategy helped the country contain the outbreak. But other nations, such as Italy and Spain, have focused mainly on slowing the virus — through social distancing — without intensive testing and contact tracing. They will face more challenges when trying to return to life before the pandemic, says Cowling.
China is still implementing extensive COVID-19 monitoring nationwide. Provinces issue all residents a QR code, a type of barcode containing information that is revealed when scanned, based on their health details and travel history. If a person has remained in areas considered safe in China or has been quarantined and tested negative for the disease, they are assigned a ‘green status’ — the lowest risk — which allows them to cross provincial borders, enter hospitals and residential areas, and ride the subway and trains.
Now let's look at more information:
Face Recognition Access Control Terminal with Digital Detection Module
Access Control Terminal with Digital Detection Module
