National vaccine efforts need to fit global approach, says WHO

National supply deals in the event of the development of a successful vaccine against the coronavirus should fit a global approach, World Health Organization senior adviser Bruce Aylward said on Tuesday. World leaders pledged in late April to accelerate work on tests, drugs and vaccines against COVID-19 and to share them around the globe under a WHO-led initiative known as the ACT (Access to COVID-19 Tools) Accelerator.

More than 21.9 million people have been reported to be infected by the novel coronavirus globally and 772,647​ have died, according to a Reuters tally.