A woman hold a reflector, as she poses for a photo under blooming trees in a park, as more than a dozen major Chinese cities recorded record high temperatures for this time of year this week, with central China's Wuhan and Zhengzhou recording more than 10 degrees celsius (18 degrees Fahrenheit) higher temperatures than normal for early March, in Shanghai, China, March 9, 2023. REUTERS/Aly Song 

Cleaning workers avoid the sun on a street, as more than a dozen major Chinese cities recorded record high temperatures for this time of year this week, with central China's Wuhan and Zhengzhou recording more than 10 degrees celsius (18 degrees Fahrenheit) higher temperatures than normal for early March, in Shanghai, China, March 9, 2023. REUTERS/Aly Song 

A woman holds a Winnie-the-Pooh toy, as she poses a photo under blooming trees in a park, as more than a dozen major Chinese cities recorded record high temperatures for this time of year this week, with central China's Wuhan and Zhengzhou recording more than 10 degrees celsius (18 degrees Fahrenheit) higher temperatures than normal for early March, in Shanghai, China, March 9, 2023. REUTERS/Aly Song 

A person takes a photo under blooming trees in a park, as more than a dozen major Chinese cities recorded record high temperatures for this time of year this week, with central China's Wuhan and Zhengzhou recording more than 10 degrees celsius (18 degrees Fahrenheit) higher temperatures than normal for early March, in Shanghai, China, March 9, 2023. REUTERS/Aly Song 

A woman poses for a photo under blooming trees in a park, as more than a dozen major Chinese cities recorded record high temperatures for this time of year this week, with central China's Wuhan and Zhengzhou recording more than 10 degrees celsius (18 degrees Fahrenheit) higher temperatures than normal for early March, in Shanghai, China, March 9, 2023. REUTERS/Aly Song 

A car of Baidu's driverless robotaxi service Apollo Go is seen on a road in Wuhan, Hubei province, China February 24, 2023. REUTERS/Josh Arslan 

The Apollo logo is seen on a car of Baidu's driverless robotaxi service Apollo Go, in Wuhan, Hubei province, China February 24, 2023. REUTERS/Josh Arslan 

Albert from Wuhan, China, touches a baby elephant's trunk in a jungle park ahead of the Lunar New Year in Phuket, Thailand January 20, 2023. REUTERS/Jorge Silva 

A security personnel in a protective suit keeps watch as medical workers attend to patients at the fever department of Tongji Hospital, a major facility for patients of the coronavirus disease (COVID-19), in Wuhan, Hubei province, China January 1, 2023. REUTERS/Staff 

Staff members work on maintaining makeshift quarantine facilities for patients at Tongji Hospital, a major facility for patients of the coronavirus disease (COVID-19), in Wuhan, Hubei province, China January 1, 2023. REUTERS/Staff 

A child walks while people wait with their luggages at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People walk at Wuhan Railway Station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People wait with their luggages at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People wait with their luggages at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People wait with luggages to board a train at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People wait with luggages at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People wait with luggages at a railway station, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People release balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

Police guard an area to avoid mass gatherings during New Year's Eve celebration, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

Children hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People release balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People release balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China January 1, 2023. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

Police guard an area to avoid mass gatherings during New Year's Eve celebration, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

Police guard an area to avoid mass gatherings during New Year's Eve celebration, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People hold balloons as they gather to celebrate New Year's Eve, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk past a ballon vendor, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

Children play on a boat by the Yangtze River, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

A girl poses for a picture behind numbers '2023', which are written in the sand, amid the coronavirus disease (COVID-19) outbreak, on New Year's Eve in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People stand on the sand by the Yangtze River, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk next to barriers on a street, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk on the sand by the Yangtze River, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People ride on a scooter with balloons on a street, amid the coronavirus disease (COVID-19) outbreak, on New Year's Eve in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk past ballon vendors, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

A medical worker in a protective suit registers information for a patient at the entrance to the fever clinic of the Central Hospital of Wuhan, amid of the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People cross a road amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

A medical worker in a protective suit checks a thermometer for a patient at the entrance to the fever clinic of the Central Hospital of Wuhan, amid of the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk past a barrier blocking off Huanan seafood market, where the coronavirus is believed to have first surfaced, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

A man walks past a barrier blocking off a marketplace including Huanan seafood market, where the coronavirus is believed to have first surfaced, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

Staff members hang lanterns ahead of the New Year at a glasses market, amid of the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk past barriers blocking off a marketplace including Huanan seafood market, where the coronavirus is believed to have first surfaced, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People walk past a barrier blocking off Huanan seafood market, where the coronavirus is believed to have first surfaced, amid the coronavirus disease (COVID-19) outbreak, in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

A boat moves on the Yangzte River in Wuhan, Hubei province, China December 31, 2022. REUTERS/Tingshu Wang 

People wearing protective suits wait at a waiting hall of a railway station, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 11, 2022. REUTERS/Martin Pollard 

A woman puts on a raincoat as a protective measure at an entrance of a railway station, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 11, 2022. REUTERS/Martin Pollard 

People enter a railway station, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 11, 2022. REUTERS/Martin Pollard 

A staff member wearing a protective suit works at an inquiry counter at a railway station, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 11, 2022. REUTERS/Martin Pollard 

A person wearing a protective suit waits at a waiting hall of a railway station, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 11, 2022. REUTERS/Martin Pollard 

A person walks past shops, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

A person walks past a shop closed for business, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

People line up at a food stall in the morning, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

A medical worker takes a swab sample from a resident for the nucleic acid test, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

Residents walk in a residential neighbourhood, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

People stand by a river, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard