Metro passengers now have their temperature checked at 106 stations around the city, with all lines covered, Shanghai Metro said on Sunday.
The stations include the most busy interchange stations downtown.
It takes only 2 seconds to measure the temperature of a passenger with a hand-held sensor. Those with a temperature over 37.3 degrees Celsius will be required to leave personal information.
If such passengers have traveled to Hubei Province in the past 14 days or have had contact with people who traveled from that province to Shanghai, the Metro staff will check the temperature again and call an ambulance. Regardless, passenger with high temperatures will not be allowed on trains and asked to go to hospitals.
Those who decline to have their temperature measured or leave their personal information will be reported to the police.
The temperature checks will eventually cover all 415 stations.
Shanghai Transportation Commission said on Saturday that people who take buses from 99 bus stations around the city now have temperature checks, with 370 routes covered.