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Vials of the Johnson & Johnson COVID-19 vaccine lie on a table Feb. 18 at Klerksdorp Hospital in South Africa. Moderna, Pfizer and Johnson & Johnson are the first three manufacturers to have COVID-19 vaccines on the market.
Vials of the Johnson & Johnson COVID-19 vaccine lie on a table Feb. 18 at Klerksdorp Hospital in South Africa. Moderna, Pfizer and Johnson & Johnson are the first three manufacturers to have COVID-19 vaccines on the market.