News Snapshot:
China will join a global effort to distribute Covid-19 vaccines to poorer countries, Beijing said Friday, making it the most prominent nation to take part in a World Health Organization initiative the U.S. has rebuffed. Nations around the world are racing to buy up supplies of Covid-19 vaccines even before any have been proved safe and effective in clinical trials. Richer countries have already secured most of the initially available manufacturing capacity by paying for the vaccines to be produced ahead of those trial results. ...
