Chris SchutteApr 7, 20211 min readVaccine Refusal May Put Herd Immunity At Risk, Researchers Warnhttps://www.npr.org/sections/health-shots/2021/04/07/984697573/vaccine-refusal-may-put-herd-immunity-at-risk-researchers-warn?ft=nprml&f=1001
https://www.npr.org/sections/health-shots/2021/04/07/984697573/vaccine-refusal-may-put-herd-immunity-at-risk-researchers-warn?ft=nprml&f=1001
