The move drew sharp criticism from medical and health experts. “Scrapping the fastest platform we have is a reckless move rooted in a fundamental misunderstanding of vaccinology,” wrote Jake Scott, an infectious diseases specialist and clinical associate professor of medicine at Stanford University, on the social media site Bluesky.

WASHINGTON (AP) — So-called mRNA vaccines saved millions of lives during the COVID-19 pandemic — and now scientists are using that Nobel Prize-winning technology to try to develop vaccines and treatments against a long list of diseases including cancer and cystic fibrosis.

The Department of Health and Human Services said it is winding down its mRNA vaccine-development activities under the Biomedical Advanced Research and Development Authority.