A number of countries tightened their borders against a surge in variant strains of the deadly coronavirus as the United States on Saturday ordered travellers to […]
News that the Novavax COVID-19 vaccine has shown about 60% efficacy on HIV-positive patients and that it seems to work against the variant of the virus […]
Members of a World Health Organization team investigating the origins of the coronavirus pandemic visited another Wuhan hospital that had treated early COVID-19 patients on their […]