A person wearing a protective suit rides a scooter on a street, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

A resident hangs up clothes at 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 

A medical worker moves a hospital bed carrying a person, outside a fever clinic of a hospital, after the government eased curbs on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

People walk past a pharmacy, after the government gradually loosens the restrictions on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic of a hospital, after the government gradually loosens the restrictions on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic of a hospital, after the government gradually loosens the restrictions on the coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 10, 2022. REUTERS/Martin Pollard 

Workers in protective suits stand at the central hospital of Wuhan, after the government gradually loosened restrictions on coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

Workers in protective suits stand near barriers that separates a street from a queue for fever clinic at the central hospital of Wuhan, after the government gradually loosened restrictions on coronavirus disease (COVID-19) control, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic at The Central Hospital of Wuhan, after the government gradually loosened coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

Workers in protective suits push a hospital bed outside The Central Hospital of Wuhan, after the government gradually loosened coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic of The Central Hospital of Wuhan, after the government gradually loosened coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic at The Central Hospital of Wuhan, after the government gradually loosened the coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic at The Central Hospital of Wuhan, after the government gradually loosened the coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

People line up at a fever clinic at The Central Hospital of Wuhan, after the government gradually loosened the coronavirus disease (COVID-19) restrictions, in Wuhan, Hubei province, China December 9, 2022. REUTERS/Martin Pollard 

Workers in protective suits stand at a railway station in Beijing, China December 8, 2022. REUTERS/Martin Pollard REFILE - CORRECTING LOCATION 

Yuan Zhiming, director of National Biosafety Laboratory (Wuhan) and professor of Wuhan Institute of Virology, attends a news conference on the origin-tracing of the coronavirus disease (COVID-19) in Beijing, China July 22, 2021. REUTERS/Shubing Wang 

Yuan Zhiming, director of National Biosafety Laboratory (Wuhan) and professor of Wuhan Institute of Virology, attends a news conference on the origin-tracing of the coronavirus disease (COVID-19) in Beijing, China July 22, 2021. REUTERS/Shubing Wang 

People crowd on a street during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Visitors are seen on the Yellow Crane Tower during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Visitors walk near the Yellow Crane Tower during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

People ride on a boat crossing Yangtze River, during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

People get off a boat on Yangtze River during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

People ride on a boat crossing Yangtze River, during Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

A child leans on railing on a boat crossing Yangtze River, during Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Visitors crowd near the Yellow Crane Tower during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Visitors crowd near the Yellow Crane Tower during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Tourists stand near the Yellow Crane Tower during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

People stand near a Chinese national flag on a boat crossing Yangtze River, during the Labour Day holiday in Wuhan, Hubei province, China May 2, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang TPX IMAGES OF THE DAY 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Fans attend a performance of a rock band at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

A woman attends the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

A woman attends the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People watch a performance at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People attend the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People watch a performance at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

People watch a performance at the Strawberry Music Festival during Labour Day holiday in Wuhan, Hubei Province, China May 1, 2021. REUTERS/Tingshu Wang 

Deng Wei poses for a picture in front of her grandmother's and father's tombs, both of whom died due to complications related to the coronavirus disease (COVID-19), in Wuhan, Hubei province, China January 24, 2021. Picture taken January 24, 2021. REUTERS/Martin Pollard 

Deng Wei sweeps in front of her grandmother's and father's tombs, both of whom died due to complications related to the coronavirus disease (COVID-19), in Wuhan, Hubei province, China January 24, 2021. Picture taken January 24, 2021. REUTERS/Martin Pollard 

Peter Ben Embarek, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), waves as he arrives at the airport to leave Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), gestures in front of media as he arrives at the airport, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) arrives at the airport, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek, and others members of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leave their hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek , and others member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leave their hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek , a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) leaves his hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Vladimir Dedkov, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) walks outside his hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Vladimir Dedkov, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) walks outside his hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Vladimir Dedkov, a member of the World Health Organisation (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19) walks outside his hotel, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Ben Embarek and Peter Daszak, members of the World Health Organization (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), shake hands at a hotel in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song 

Peter Daszak, a member of the World Health Organization (WHO) team tasked with investigating the origins of the coronavirus disease (COVID-19), leaves a hotel with a chart of the Huanan seafood market, in Wuhan, Hubei province, China February 10, 2021. REUTERS/Aly Song