The technology center in the south of the country is one of China’s largest cities, and all residents were ordered to stay home on Sunday.
The lockdown will run until March 20, the municipality said. There will be no public transport during this time. There will be three rounds of mass testing.
Earlier, the archipelago was set for the central district of Shenzhen.
Due to the increase in infections, schools in Shanghai have been closed, and an arc has been announced in several cities in the north-east of the country, with 18 provinces fighting the circulation of the virus’s omicron and delta variants in society.
China, where the first cases of Covid-19 were discovered in late 2019, has followed a strict “zero Covid” policy, introducing local arcades, imposing travel restrictions and mass testing.
In Shanghai, residents have limited opportunities to leave home for two days in certain areas, and can only get out or come to Shanghai by presenting a negative Covid-19 test in the last 48 hours.
In Jilin, in the northeast of the country, a partial arc was imposed on Saturday, while in Yangtze, on the border with North Korea, all residents were banned from leaving their homes on Sunday.
The outbreak in Shenzhen is linked to the widespread use of Covid-19 in Hong Kong.
The number of new infections in China has doubled to almost 3,400 a day.
