CrAssphage for fecal source tracking in Chile: Covariation with norovirus, HF183, and bacterial indicators

Autor: Wiley C. Jennings, Elías Gálvez-Arango, Ana L. Prieto, Alexandria B. Boehm
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Water Research X, Vol 9, Iss , Pp 100071- (2020)
Druh dokumentu: article
ISSN: 2589-9147
DOI: 10.1016/j.wroa.2020.100071
Popis: Anthropogenic fecal pollution in urban waterbodies can promote the spread of waterborne disease. The objective of this study was to test crAssphage, a novel viral human fecal marker not previously applied for fecal source tracking in Latin America, as a fecal pollution marker in an urban river in Chile. Human fecal markers crAssphage CPQ_064 and Bacteroides HF183, the human pathogen norovirus GII, and culturable fecal indicator bacteria (FIB) were quantified at six locations spanning reaches of the Mapocho River from upstream to downstream of Santiago, as well as in repeated sub-daily frequency samples at two urban locations. Norovirus showed positive correlation trends with crAssphage (τ = 0.57, p = 0.06) and HF183 (τ = 0.64, p = 0.03) in river water, but not with E. coli or enterococci. CrAssphage and HF183 concentrations were strongly linearly related (slope = 0.97, p
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