Depending on Criteria, Boosters Could Require Billions More Doses

Doses needed by group

For the purposes of this analysis, Think Global Health estimates the size of the immunocompromised population to be 2.7 percent of the adult (15+) population, based on this Journal of the American Medical Association (JAMA) study on prevalence of immunosuppression among U.S. adults (18+).
Source: World Bank. A version of this chart originally appeared on Think Global Health.