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DETECTION OF ENVIRONMENTAL VIRUSES IN SLUDGE: ENHANCEMENT OF ENTEROVIRUS PLAQUE ASSAY TITERS WITH 5-IODO-2'-DEOXYURIDINE AND COMPARISON TO ADENOVIRUS AND COLIPHAGE TITERS (JOURNAL VERSION)
Citation:
Williams, F. AND C. Hurst. DETECTION OF ENVIRONMENTAL VIRUSES IN SLUDGE: ENHANCEMENT OF ENTEROVIRUS PLAQUE ASSAY TITERS WITH 5-IODO-2'-DEOXYURIDINE AND COMPARISON TO ADENOVIRUS AND COLIPHAGE TITERS (JOURNAL VERSION). U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-88/148 (NTIS PB89110530), 1988.
Description:
Enteroviruses present in the primary sludge of two wastewater treatment plants were quantitated by plaque assay using a continuous African green monkey kidney cell line (BGM). Incubation of BGM monolayers with 5-iodo-2'-deoxyuridine (50 micrograms/ml) for 4 days prior to use enhanced the number of PFU detected in 10 of 10 concentrated sludge samples. Coliphages also present in these samples were detected using as hosts E. coli C and E. coli A-19, an Hfr strain. E. coli C coliphage titers were consistently higher than E. coli A-19 titers, and were 100-1000 times higher than the enterovirus titers obtained with BGM cells. Adenoviruses present in the sludge samples were detected by immunofluorescence assay. Interestingly, those results suggested that adenoviruses were also more numerous than enteroviruses (as detected by either IDU-treated or untreated BGM plaque assay).