World Health Organization

Western countries might be majority inoculated, but what about the global South?
The malaria vaccine known as Mosquirix was developed by GlaxoSmithKline in 1987.
The U.S. continues to report the highest number of new cases, with children making up 15.5% of all new infections last week, according to a separate report.
Coronavirus vaccine supply is extremely limited in much of the world, even as rich countries struggle to administer all their supply.
5.5 billion coronavirus vaccines have been administered so far, but 80% of those have been to upper- and middle-income countries.
Israel, France and Germany have started administering booster shots, while the U.S. CDC maintains they are not necessary right now.
Chinese authorities have not been transparent with investigators trying to figure out how the coronavirus pandemic started.
Does the new coronavirus strain affect the vaccines? Where is it spreading? Here's what you need to know.
The highly transmissible variant has worried public health officials who warn it could lead to a new surge in cases, particularly among the unvaccinated.
WHO said all viruses "change over time" and hoped the shift would remove stigma associated with regions where variants were first seen.