Comparative Survival of Indicator Viruses and Enteric Viruses in Seawater and Sediment = 병원성 바이러스와 지표성 바이러스의 생존에 관한 비교연구

다국어 초록 (Multilingual Abstract)

Laboratory studies quantified the relative survival of F-specific coliphages, B. fragilis phages, hepatitis A virus, poliovirus, and rotavirus in seawater and seawater -sediment mixtures. Samples of each matrix were seeded with all five types of viruses and incubated at 5℃ and 25℃ for 60 days. F-specific coliphages were inactivated faster than three enteric viruses in seawater at 25℃ . In seawater-sediment mixture at 5 and 25℃ or in seawater at 5℃, their survival was comparable to the enteric viruses that died off most rapidly. In contrast, B. fragilis phages survived comparable to or better than enteric viruses in all test conditions. In presence of sediment, progressively more viruses were found to be associated with the sediment rather than supernatant water over time. The effect of sediment on survival of viruses differed among viruses with some viruses surviving longer in sediment than in water and others showing the reverse. Temperature was an important factor with significantly greater survival rates at 5℃ than at 25℃ for all five viruses.