Outbreak of herpangina associated with coxsackievirus B3 infection

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Abstract
An outbreak of acute febrile illness was observed in summer, 1987, in a welfare home in which 31 healthy infants were accommodated. Within a 5-day period 25 infants (81%) acquired a febrile illness. Coxsackievirus B3 was isolated from 16 (64%) of 25 throat swabs. In the patients in whom viral culture was negative or not performed, 6 were serologically identified as having a coxsackievirus B3 infection. Among 22 patients identified as having a coxsackievirus B3 infection 7 had typical herpangina and the others had pharyngitis with or without a few small vesicles. Serum alpha-interferon was detected in all but 2 cases (one with proved infection and another with indefinite infection). Herpangina can be associated with coxsackie-virus B3 as well as with the more frequently associated coxsackievirus Group A; this explosive type of outbreak might be transmitted by a small particle aerosol.

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