The largest influx of doses, however, came after the United States, the European Union and other wealthy nations began donating doses through Covax in the summer. The vast majority of doses from Johnson & Johnson, Moderna and Pfizer-BioNTech have been donated, leading to concerns that the flow of doses could dry up again if donor nations felt threatened by omicron or other variants.
Covax vaccine deliveries surge in final stretch of 2021, with a record 300 million doses sent out in December
ByBetty C. Giordano
Jan 2, 2022
By Betty C. Giordano
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