Wuhan lab denies virus link as online mega-concert raises spirits

The existence of the lab has fuelled conspiracy theories that the germ spread from the Wuhan Institute of Virology, specifically its P4 laboratory. [AFP]

A laboratory in the Chinese city at ground zero of the global coronavirus outbreak has rejected as "impossible" US theories it is the cradle of the pandemic, as President Donald Trump warned Beijing of consequences if it was "knowingly responsible".

The denial came as the world's top musicians -- from the Rolling Stones to Taylor Swift, Stevie Wonder and teen superstar Billie Eilish -- joined forces for a virtual mega-concert, hoping to spread cheer to billions under lockdown.