BEIJING — China on Monday reported a further decline in new confirmed cases of COVID-19, with a total of just 12, including seven cases of domestic transmission in Beijing, where nearly 8.3 million people have now undergone testing in recent weeks. The number of new cases in the city was down by half from the day before, the National Health Commission reported.

No new deaths were reported Monday, leaving the total at 4,634 among 83,512 confirmed cases of COVID-19, . Currently 418 patients are in treatment, and another 112 are under observation for being suspected cases or for testing positive without showing any symptoms.

Beijing temporarily shut a huge wholesale food market where the virus spread widely earlier this month, re-closed schools and locked down some neighborhoods. Anyone leaving Beijing is required to have a negative virus test result procured within the previous seven days.

About 7.69 million results on people tested in Beijing have been returned, city official Zhang Qiang said Sunday. Beijing has more than 20 million people but authorities have focused so far on high risk groups such as people working in the food and salon industry and those living in areas where cases have been discovered.