Population
Paralytic and fatal cases of poliomyelitis reported in New York State since 1915
Design
Cohort
Follow-up
Since 1915
Authors
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Reduction limited to children under 15 cautions against uniform age assumptions; leaves open adult polio mortality trends and targeted prevention needs.
Poliomyelitis mortality decreased significantly since 1915 due to natural immunization and improved medical care, but this reduction was limited to children under 15 years of age.
Robert L. Vought (1957) studied this question.
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