EPIDEMIOLOGICAL EVENTS SURROUNDING A PARALYTIC CASE OF POLIOMYELITIS IN SWEDEN

  • 1 January 1979
    • journal article
    • research article
    • Vol. 57  (1) , 99-103
Abstract
A case of clinical poliomyelitis occurred in Sweden in Jan. 1977; it was the 1st indigenous case in Sweden since 1962. This incident was of particular interest as it provided an opportunity to study the spread of virus in a cluster of unvaccinated persons and in individuals more or less fully vaccinated with inactivated vaccine. The patient excreted wild type 2 virus and the same type was isolated from 25 other individuals, all of whom were close contacts of virus excretors. Among the close contacts, 14 of 20 unvaccinated preschool children excreted virus, but excretion was not found in any of the 7 vaccinated children examined.