© 1991 by Oxford University Press
brief-report |
Paralytic Poliomyelitis Outbreak in Gizan, Saudi Arabia
Department of Pathology (32), College of Medicine, King Saud University P.O. Box 2925, Riyadh 11461,Saudi Arabia
An outbreak of paralytic poliomyelitis occurred in the Southern region of Saudi Arabia between April and August of 1989. Poliovirus type 1 (wild type) was isolated from the stool of 4 out of 11 patients and 10 out of the 11 patients had a high neutralizing antibody to the isolated virus (
256). The results were confirmed by the Centers for Disease Control (CDC), Atlanta. The fact that the outbreak occurred despite a high level of immunization coverage and that all our cases had already been immunized with sabin oral polio vaccine (OPV) is probably an indication of the unsatisfactory performance of OPV in tropical and subtropical countries. Other implication of this outbreak are also discussed.