BETHESDA, Md. - The National Institutes of Health announced on April 23, that it is launching a study to assess how people with compromised immune systems respond to COVID-19 vaccines.The study has already begun enrolling participants at the National Institutes of Health Clinical Center in Bethesda, Maryland, the NIH said.
It will be a single-site study with up to 500 people enrolled, 400 of whom will have primary or secondary immune system disorders and 100 without such conditions.