A health worker wears a protective suit as he disinfects an area outside a barricaded community that was locked down during the Covid-19 pandemic in 2022 in Beijing, China. Getty Images
A health worker wears a protective suit as he disinfects an area outside a barricaded community that was locked down during the Covid-19 pandemic in 2022 in Beijing, China. Getty Images

Davos: World must be ready to fight 'disease X' together, says WHO chief