TY  - GEN
AU  - Triassi,M
AU  - Ribera,G
AU  - Barruffo,L
AU  - Barbone,S
AU  - Medda,E
AU  - Grandolfo,M E
TI  - Persistence of immunity to poliomyelitis among a southern population that received four doses of OPV 5 to over 15 years before
SN  - 0393-2990
PY  - 1996///1121
KW  - Adolescent
KW  - Adult
KW  - Antibodies, Viral
KW  - isolation & purification
KW  - Child
KW  - Female
KW  - Humans
KW  - Immunity
KW  - Italy
KW  - epidemiology
KW  - Male
KW  - Poliovirus
KW  - immunology
KW  - Poliovirus Vaccine, Oral
KW  - Seroepidemiologic Studies
KW  - Time Factors
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1007/BF00144420
ER  -