| seasonal distribution of enteroviruses and adenoviruses in domestic sewage. | a seasonal distribution of enteroviruses and adenoviruses in raw sewage effluents of athens, greece, was observed over a 15-month surveillance period. all 36 samples tested were positive for both virus groups. adenovirus concentration levels ranged from 70 to 3200 cytopathic units per litre of sample, whereas the corresponding values for enteroviruses were 90-900 cytopathic units per litre. peak values for adenoviruses were recorded during the months of april and june 1983, whereas for enterovir ... | 1985 | 2985226 |