Rich countries are buying up coronavirus vaccines, leaving poorer regions vulnerable — and as potential breeding grounds for variants, like one found in South Africa, that could make vaccines less effective.
— NYT: Top Stories
Rich countries are buying up coronavirus vaccines, leaving poorer regions vulnerable — and as potential breeding grounds for variants, like one found in South Africa, that could make vaccines less effective.
— NYT: Top Stories
The Johnson & Johnson’s vaccine’s efficacy rate dropped from 72 percent in the United States to just 57 percent in South Africa, where a highly contagious variant is driving most cases.
— NYT: Top Stories