Johnson & Johnson's COVID-19 vaccine scores longer shelf life just as millions of doses were set to expire

Just as states were scrambling to administer millions of Johnson & Johnson COVID-19 doses set to expire by the end of June, the FDA has swooped in to give the jabs a bit more time on the shelf.

The U.S. FDA has extended the shelf life for J&J’s single-shot vaccine from three months to four and a half, the drugmaker said Thursday. The agency based its decision on ongoing stability studies that found the vaccine could last longer when kept at refrigerated temperatures.