Seroimmunity to poliomyelitis in hospital personnel.

Neutralizing antibody titers to poliovirus type 1, 2 and 3 were examined in paired serum specimens obtained from 43 female hospital personnel and laboratory workers at Veterans General Hospital. Before vaccination, 23.2% of those studied did not have neutralizing antibodies to one or more types of poliovirus, and 4.6%, 13.9% and 7.0% lacked serum neutralizing antibodies to poliovirus type 1, 2 and 3, respectively. In a comparison of the serological responses evoked by oral poliovirus vaccine in the same persons, a striking difference in antibodies was shown in the geometric mean titers and no lack of antibodies was found after oral poliovaccine immunization. Therefore immunization with oral poliovirus vaccine should be considered in the future as to improved protection for such high risk people.