The US is the hardest hit country in terms of the number of cases and deaths, and has seen a new surge in recent weeks.
The United States surpassed 4 million cases of coronavirus on Thursday, amid a surge in cases, predominantly in southern and western states.
Death toll in Iran from the novel coronavirus has surged past 15,000 as 2,621 people tested positive in the last 24 hours.
Papua New Guinea has put out a call for emergency assistance to the WHO, fearful it might be facing widespread community transmission of the disease.
More than 15 million people around the world have been diagnosed with COVID-19, and at least 8.6 million people have recovered, while more than 622,000 have died – according to data from Johns Hopkins University.