| evaluation of virological quality of sewage from four biological treatment plants by a nested-pcr technique. | in order to determine the virological quality of sewage from four biological treatment plants in greece (two in the city of athens and two in the city of patras), 92 raw sewage samples were analysed for the presence of enteroviruses and adenoviruses during the period from october 2000 to february 2003. a nested-pcr method was used in order to increase the sensitivity of virus detection. enteroviruses were detected in 43 samples (47%) and adenoviruses in 75 samples (81.5%) of raw sewage by nested ... | 2004 | 15318518 |