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Mr. Viant
asked the Minister of Health the number of cases of poliomyelitis recorded prior to 1942; and the ages of the cases.
Mr. Crookshank
There were 20,332 cases of poliomyelitis (including 1,785 cases of polio-encephalitis) notified between 1st September, 1912, when the disease was made notifiable, and 31st December, 1941. The ages of these cases are not available.