The United States has called for international experts to be allowed to evaluate the source of the coronavirus and the "early days of the outbreak" in a second phase of an investigation into the origins of the coronavirus.
US intelligence agencies are examining reports that researchers at a Chinese virology laboratory were seriously ill in 2019 a month before the first cases of Covid-19 were reported, according to US government sources who cautioned yesterday there is still no proof the disease originated at the lab. "Phase 2 of the Covid origins study must be launched with terms of reference that are transparent, science-based, and give international experts the independence to fully assess the source of the virus and the early days of the