From September 17 through October 9, 1992, five cases of poliomyelitis were reported in the Netherlands among members of religious groups that generally do not accept vaccination. This report summarizes investigations of these five cases by the Netherlands’ Office of the Chief Medical Officer of Health, the Laboratory of Virology, National Institute for Public Health and Environmental Protection, and the Municipal Health Services in Rotterdam. The investigation indicated that none of the cases were epidemiologically linked; two of the cases (cases 1 and 2) had some history of receipt of polio vaccine, while three (cases 3-5) had no history of polio vaccination. This report summarizes the investigation of these cases.
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