Is it useful to turn off the mobile phone when passing through the epidemic area?

Passing through the epidemic area, it is useless to turn off the phone.

Under normal circumstances, staying in the epidemic area for more than 4 hours will be recorded by the itinerary card. It is useless to turn off your mobile phone card, because the base station will detect the last message before you turn it off, and it will also be recorded. Moreover, if we stay in the epidemic area for a long time, turning off the mobile phone will affect our travel life, at least we can't open the health code.

Handling methods of driving through epidemic areas;

If the owner chooses to drive through the epidemic high speed, he will generally not be isolated. As long as he didn't get off the bus on the way, he wouldn't be isolated in this area for less than four hours. Of course, this needs to be decided according to local specific policies. If the local policy on prevention and control during the epidemic is strict, he may be isolated when passing through the epidemic.

Of course, some cities may not be very strict with personnel during the epidemic, but they may require their own home isolation and testing.

Why do all personnel have to do nucleic acid testing point by point on time? Mainly because nucleic acid detection can check whether the human body has been infected by virus through sputum in the human body. Once the nucleic acid test results are positive, the patient will be diagnosed as having COVID-19's disease.