Kathmandu. Although China reported the virus to the world only in December 2019, a report by a US intelligence agency last year claimed that researchers at a laboratory at the Wuhan Institute of Virology in Wuhan had fallen ill and were being treated at a hospital in November, a month before the outbreak.

With this claim, there is a possibility that the virus may have come out of the laboratory, which has further strengthened the voice for an independent study to find out the facts. Earlier, some experts had said that the corona virus did not originate naturally but from a laboratory. Discussions on the subject have been on the rise since the report went public.

A former and current official with the US Central Intelligence Agency has said that further investigations are needed after Wuhan's investigators became ill, according to the Wall Street Journal.