| analysis of neutralizing antibody responses against poliovirus types 1, 2 and 3 in the tripoli area of the socialist people's libyan arab jamahiriya. | analysis of the records available show that the introduction in libya of a compulsory immunization programme against poliomyelitis was followed by a substantial decrease in the incidence of paralytic poliomyelitis. nevertheless, the annual incidence is still higher than in many western industrialized countries. we have conducted a survey of neutralizing poliovirus antibodies in human sera. in the group aged 19 years and upwards, i.e., those born before compulsory immunization, 65% had detectable ... | 1988 | 2855283 |