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Occurrence and genetic diversity of human cosavirus in influent and effluent of wastewater treatment plants in Arizona, United States
- Kitajima, Masaaki, Rachmadi, Andri T., Iker, Brandon C., Haramoto, Eiji, Pepper, Ian L., Gerba, Charles P.
- Archives of virology 2015 v.160 no.7 pp. 1775-1779
- Picornaviridae, genetic variation, humans, wastewater, wastewater treatment, Arizona
- Human cosavirus (HCoSV) is a novel member of the family Picornaviridae. We investigated the prevalence and genetic diversity of HCoSV in influent and effluent wastewater in Arizona over a 12-month period, from August 2011 to July 2012. HCoSV sequences were identified in six (25 %) influent samples and one (4 %) effluent sample, with the highest concentration of 3.24 × 10⁵ and 1.54 × 10³ copies/liter in influent and effluent, respectively. The strains were characterized based on their 5’ untranslated region and classified into species A and D, demonstrating that genetically heterogeneous HCoSV were circulating with a clear temporal shift of predominant strains in the study area.