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Bacteriophages active against Bacteroides fragilis in sewage-polluted waters.

By C Tartera and J Jofre

Abstract

Twelve strains of different Bacteroides species were tested for their efficiency of detection of bacteriophages from sewage. The host range of several isolated phages was investigated. The results indicated that there was a high degree of strain specificity. Then, by using Bacteroides fragilis HSP 40 as the host, which proved to be the most efficient for the detection of phages, feces from humans and several animal species and raw sewage, river water, water from lagoons, seawater, groundwater, and sediments were tested for the presence of bacteriophages that were active against B. fragilis HSP 40. Phages were detected in feces of 10% of the human fecal samples tested and was never detected in feces of the other animal species studied. Moreover, bacteriophages were always recovered from sewage and sewage-polluted samples of waters and sediments, but not from nonpolluted samples. The titers recovered were dependent on the degree of pollution in analyzed waters and sediments

Topics: Research Article
Year: 1987
OAI identifier: oai:pubmedcentral.nih.gov:203922
Provided by: PubMed Central
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