American Journal of Epidemiology Vol. 109, No. 3: 352-361
Copyright © 1979 by The Johns Hopkins University School of Hygiene and Public Health
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NON-POLIO ENTEROVIRUS ACTIVITY IN WISCONSIN BASED ON A 20-YEAR EXPERIENCE IN A DIAGNOSTIC VIROLOGY LABORATORY
1 From the Wisconsin State Laboratory of Hygiene and Department of Preventive Medicine U. of Wisconsin Center for Health Sciences, Madison, WI 53706
Address reprint requests to: Donald Nelson, 523 Stovall Bldg., 465 Henry Mall, Madison, WI 53706.
Laboratory test results, demographic information, and clinical data on 1364 patients who had specimens submitted to the Wisconsin State Laboratory of Hygiene and from whom non-polio enterovlruses were isolated during 1957–1976 were examined. Echoviruses (echo) and Coxsackievirus group B (CB) and group A (CA) were isolated from 719, 389, and 256 of the patients, respectively. Thirty-five different serotypes were identified in the 20-year period. The six most frequently occurring serotypes (echo 9, CB 5, echo 18, CB 2, CB 4, and echo 6) were associated with 57 per cent of all illnesses. The first three serotypes occurred in an epidemic-like manner whereas the next three appeared to be endemic. Eighty-eight per cent of all isolations were from patients whose illnesses began in July through October. The percentage of CA isolates obtained from adults was much smaller than the corresponding percentages seen with CB or echo. A majority of the non-polio enteroviruses were obtained from males. Central nervous system and gastrointestinal tract involvement was greatest with echo and CB 5 and lowest with CA and CB 1–4 illnesses. The highest frequency of respiratory tract Involvement was with CA and echo 9 illnesses and rash was most frequent with CA illnesses. The highest frequency of hospitalization was with CB 5 patients.
Coxsackie viruses; disease outbreaks; echoviruses; enteroviruses; enterovirus Infections; serology