Incentives for Immunity — Strategies for Increasing Covid-19 Vaccine Uptake

[1 ]From the Perelman School of Medicine (K.G.V., C.C.C.), the Wharton School (K.G.V.), and the Center for Health Incentives and Behavioral Economics (K.G.V., C.C.C.), University of Pennsylvania; and the Corporal Michael J. Crescenz VA Medical Center (K.G.V.) — both in Philadelphia.