Dr Tedros said such allegations are "untrue and unacceptable" and warned against politicising the coronavirus pandemic.
US Secretary of State Mike Pompeo is in London to holds talks with UK prime minister, Boris Johnson.
A former NATO spokesperson says the US Secretary of State Mike Pompeo’s visit to North Macedonia is an important sign of re-engagement with the Balkan region.
The committee chairmen also sent a separate letter to Pompeo to schedule the depositions of five State Department officials over the next two weeks.
"The idea of waving to the Brits and waving back is great and to have different types of music from different European countries. It is amazing idea and we support it," Mayor of Wijk ann See
In an interview with Euronews on Monday, US secretary of state Mike Pompeo said the US hadn't "been treated fairly" by the EU. Did he have a point?
Key differences remain between London and Washington over the Iran nuclear deal and Chinese telecoms giant Huawei.