The head of the primary US public health organisation, the Centers for Disease Control, Dr Rochelle Walensky said on Friday that she will resign from her position at the end of June.

US: CDC chief Rochelle Walensky resigns, says Covid-19 waning good time for transition

Director of Centre for Disease Control Robert Redfield contradicted President of the United States, Donald Trump, over the possible availability of coronavirus vaccine.

US Health body contradicts Trump's claim on vaccine arrival

US President Donald Trump again contradicted his own health officials' coronavirus statements -- this time on the importance of mask wearing and the timing for a vaccine.

Donald Trump unveils Coronavirus vaccine distribution plan