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TOPSHOT - An aerial view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

TOPSHOT - An aerial view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)
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An aerial view shows the P4 laboratory (C) at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

An aerial view shows the P4 laboratory (C) at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)
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An aerial view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

An aerial view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)
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A general view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)

A general view shows the P4 laboratory at the Wuhan Institute of Virology in Wuhan in China's central Hubei province on April 17, 2020. - The P4 epidemiological laboratory was built in co-operation with French bio-industrial firm Institut Merieux and the Chinese Academy of Sciences. The facility is among a handful of labs around the world cleared to handle Class 4 pathogens (P4) - dangerous viruses that pose a high risk of person-to-person transmission. (Photo by Hector RETAMAL / AFP) (Photo by HECTOR RETAMAL/AFP via Getty Images)
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TOPSHOT - This photo taken on January 22, 2020 shows medical staff members wearing protective suits at the Zhongnan hospital in Wuhan in China's central Hubei province. - China banned trains and planes from leaving Wuhan at the centre of a virus outbreak on January 23, seeking to seal off its 11 million people to contain the contagious disease that has claimed 17 lives, infected hundreds and spread to other countries. (Photo by STR / AFP) / China OUT (Photo by STR/AFP via Getty Images)

TOPSHOT - This photo taken on January 22, 2020 shows medical staff members wearing protective suits at the Zhongnan hospital in Wuhan in China's central Hubei province. - China banned trains and planes from leaving Wuhan at the centre of a virus outbreak on January 23, seeking to seal off its 11 million people to contain the contagious disease that has claimed 17 lives, infected hundreds and spread to other countries. (Photo by STR / AFP) / China OUT (Photo by STR/AFP via Getty Images)
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