NEW YORK, United States (AFP) — Pfizer has “ramped up production” of its Covid-19 vaccine and can deliver 10 percent more doses than expected to the United States by the end of May, its CEO Albert Bourla said on Tuesday. That would bring its delivery by the end of next month to 220 million doses, and Bourla said on Twitter the pharmaceutical giant can also “supply the full 300 million agreed on for the end […]