The US contributes around a fifth of the budget for the World Health Organization – its withdrawal from the public health body will impede efforts to control the global spread of diseases and could pu

Experts have also cautioned that withdrawing from the organization could weaken the world’s defenses against dangerous new outbreaks.

Ooh, that’s a big one,” Donald Trump said Monday as he signed an executive order – one of dozens during his first hours as president – to withdraw the United States from the World Health Organization.