China is battling coronavirus outbreaks in several cities, testing the country’s strict “zero-Covid” strategy just weeks before Beijing hosts the Winter Olympics.

Here’s a look at the measures in place in key areas of the world’s most populous nation.

Fears are growing over China’s largest domestic Omicron cluster to date in the northern port city of Tianjin, where two confirmed cases of the highly transmissible variant were discovered over the weekend.

Thirty-three new transmissions were reported in the city on Wednesday, as authorities launched a second round of mass tests for the 14 million residents.

“We are very concerned whether the virus has spread to areas outside of Tianjin … especially Beijing,” Zhang said in an interview with public broadcaster CCTV on Monday, adding that its transmission rapid had posed “unprecedented challenges”.

Buses and flights from the city were canceled on Tuesday, and schools and college campuses were closed.

Authorities have tightened controls on transport links to Beijing, with trains canceled and road checkpoints installed.

The historic city of 13 million people is in its third week of strict lockdown as it rushes to eradicate an outbreak of 2,000 cases, one of the largest in China for months.

Local authorities have been criticized for their handling of a lockdown that has included supply issues and medical tragedies.

– Henan –

The province reported 87 new local cases on Wednesday. It is not known how many of these are Omicron cases.

Last week, one million people in Yuzhou City were ordered to stay at home.

Authorities have since taken five million residents into custody, ordering them to stay at home, while transport links have been cut.

The capital completed its “closed loop” of the Winter Olympics last week, which will envelop thousands of athletes and Games staff for weeks without direct physical access to the outside world.

The city has banned entry for people traveling from places that have recorded cases of Covid in the past two weeks and requires all arrivals to test negative within the past 48 hours.

After recording a handful of cases in recent days, the southern tech hub just across the border from Hong Kong has locked down some housing complexes, launched mass tests on residents and truckers, and closed some train stations. long-distance road and ferry routes.

Authorities said the first patient in the current outbreak was working in the international supply chain.

“If there were significant manufacturing or logistics shutdowns in China associated with the challenges of Covid, it would have a huge impact on the global economic environment,” Thomas O’Connor, chain expert told Bloomberg. procurement at Gartner Inc in Sydney.