The United States signs a $2.7 billion deal to buy enough COVID-19 vaccine still under development to inoculate 50 million people if it proves to be safe and effective, while Brazil's President Bolsonaro tests positive a third time.
Daily confirmed cases of coronavirus in Spain climb in the thousands once again, with the Catalonia region the major source of new infections. Meanwhile Tokyo, just one year out from the Olympics, records its largest single-day case total.
North Korean leader Kim Jong-un convenes an emergency government meeting after a person suspected of having COVID-19 returns from South Korea after illegally crossing the border this month, state media says.
The rate of coronavirus spread around the globe remains a large concern for the World Health Organization with case numbers globally doubling in the past six weeks, while in the US, case numbers in Florida overtake those of the nation's original epicentre of New York.