Vanoona nezvekudzivirirwa kwezvirwere muAmerica , veCenter for Desease Control and Prevention , pamwe chete neve Food and Drug Administration , varikuyambira vanhu vanogara mumatunhu matanhatu ari kumaodzanyemba kwadziva kumabvazuva kweAmerica , anosanganisa Massachusetts , Connecticut , New Jersey , New York , Pennsylvania , neRhode Island kuti vambomira kudya mapopo anobva kuMexico kusvika vezvehutano