A report from Republicans on the Foreign Affairs Select Committee of the U.S. Congress has said the “preponderance of evidence proves” the virus leaked from the Wuhan Institute of Virology “sometime before September 12th, 2019”.
The Telegraph summarises some of the main points of evidence.
The Republican report cited what it called under-reported information about laboratory safety protocols.
It detailed a request in July 2019 for a $1.5million overhaul of a hazardous waste treatment system, which was less than two years old. That request included maintenance on an “environmental air disinfection system”.
It raised questions about how well such systems were working in the months leading up to the outbreak, the report said.
The report said: “Such a significant renovation so soon after the facility began operation appears unusual.”
According to the report, satellite data in October showed a jump in visits to hospitals in Wuhan, along with a rise in people searching the internet for symptoms that could be linked to the virus.
It suggested the virus spread through Wuhan shortly before the Military World Games was held there in late October 2019.
In November, that event became an “international vector spreading the virus to multiple continents around the world” as athletes returned home, the report said.