RESUMEN
A prospective, cohort, open clinical study was carried out to assess the immunization/ vaccination status of children presenting with acute flaccid paralysis [AFP]. A total of 44 patients with acute flaccid paralysis were admitted to the Pediatric Medicine-Il, Nishtar Hospital, Multan during April 95 to August 96. Thirty of these patients were labelled as "Probable Poliomyelitis" and their stool samples were sent for isolation of polio virus. Polio virus type-I was isolated in 12 patients. Four [33.33 percent] of these were fully vaccinated while three [25 percent] were partially vaccinated; three cases [25 percent] were nonvaccinated and 2 [16.66 percent] bad taken polio drops on the National Immunization Days [NID] for polio eradication. Necessary measures have been suggested to improve the Immunization situation