Prevalence of anti-poliovirus type 1, 2 and 3 antibodies in unvaccinated Italian travelers

Signorini, L; Matteelli, Alberto; Fausti, C; Castelli, Francesco; Barbi, M; Binda, S; Dida, P; Caroppo, S; Primache, V; Pisani, S; Messino, C; Brunelli, M; Costa, P; Ronca, E.