A vial labelled "Novavax V COVID-19 Vaccine" is seen in this illustration taken January 16, 2022. The Food and Drug Administration authorized Novavax's updated protein-based Covid vaccine for emergency use in people ages 12 and up on Friday, paving the way for the shot to compete with Pfizer and Moderna's jabs this fall and winter. Novavax's vaccine targets the highly contagious omicron subvariant JN.1, which began circulating widely in the U.S. earlier this year. JN.1 only accounted for 0.2% of cases circu ...