Workers at a clinic in Boone County, W.Va. accidentally gave 42 people Regeneron's COVID-19 antibody treatment instead of Moderna's COVID-19 vaccine, the West Virginia National Guard announced Dec. 31.
Regeneron's antibody cocktail is a combination of casirivimab and imdevimab, two antibodies that fight against COVID-19. The FDA granted it emergency use authorization Nov. 21.
The West Virginia National Guard said the error does not pose a risk to the 42 individuals. It also said those 42 people "will be offered the vaccine as soon as possible with a priority status," according to the Washington Post.