Explainer: Who's WHO? The World Health Organization under scrutiny

The World Health Organization (WHO) is in the spotlight as it champions the global fight against the new coronavirus but faces a funding freeze from U.S. President Donald Trump's government.The WHO is an agency of the United Nations set up in 1948 to improve health globally.It has more than 7,000 people working in 150 country offices, six regional offices and its Geneva headquarters.