Population
Vaccinated and non-vaccinated 'poliomyelitis' patients in Connecticut during the summer and fall of 1955.
Design
Cross-sectional
Authors
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Echo-6 was associated with nonparalytic aseptic meningitis; leaves open non-polio enterovirus contributions to cases once classified as poliomyelitis.
The study identifies echo virus type 6 as a significant agent associated with nonparalytic aseptic meningitis cases previously classified as poliomyelitis.
Davis et al. (1956) studied this question.
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