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#OpenAccess: Prevalence of Neutralizing Antibodies Against #Poliovirus 1, 2, and 3 in #HealthcareProfessionals Aged 20-50 Years | Revista Paulista de Pediatria https://t.co/KuTf6HrTvx #EndPolio #Polio #VaccinesWork #PublicHealth #Brazil #NeutralizingAntibo