Persistence of Antibodies to ECHO-16 Viruses Following Boston Exanthem Disease.

Abstract
Persistence of complement fixing and neutralizing antibodies to ECHO 16-like viruses was studied in 15 patients convalescent from Boston Exanthem disease. CF titers fell moderately within 1 or 2 years after infection, but remained demonstrable for 3 to 6 years. Levels of neutralizing antibody persisted without significant decline for a similar period of time.

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