Key result
Enterovirus densities in north-eastern Spain waters were highest in raw sewage (968 PFU/L), with a clear prevalence of coxsackieviruses and no wild polioviruses detected.
Observational
Enterovirus densities in north-eastern Spain surface waters are similar to other industrialized countries, with a prevalence of coxsackieviruses and no wild polioviruses detected.
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Updated enterovirus data from Spanish waters guides environmental monitoring; leaves open links to human health risks.
AIMS: Update information regarding occurrence and levels of culturable enteroviruses in several types of surface polluted waters in north-eastern Spain and determine the proportion of the different species and serotypes. METHODS AND RESULTS: The best procedures on hand in our laboratory for concentrating and quantifying culturable enteroviruses from different water sample types were used. Sequencing was used for typing the virus isolates. Geometric means of enteroviruses densities expressed in plaque forming units per litre were 968 in raw sewage, 12.51 in secondary effluents, 0.017 in tertiary effluents, 0.4 in river water and 0.36 in seawater. Enterovirus densities in wastewater revealed certain seasonality with a maximum at the end of spring - beginning of the summer. Coxsackievirus B, and amid them serotype CB4, were the most abundant species and serotypes detected. CONCLUSIONS: Densities of enteroviruses in different north-eastern Spain surface waters are similar to those present in industrialized countries with temperate climate. No wild polioviruses were detected. Distribution of species showed a clear prevalence of coxsackieviruses. SIGNIFICANCE AND IMPACT OF THE STUDY: Information regarding enteroviruses in this geographical area provides valuable information to estimate the risk of enteroviruses transmission through water and for complementing clinical epidemiological data.
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Costán-Longares et al. (2008) conducted an observational in Enterovirus contamination in water. Surface and wastewater was evaluated on Geometric means of enteroviruses densities (PFU/L). Enterovirus densities in north-eastern Spain waters were highest in raw sewage (968 PFU/L), with a clear prevalence of coxsackieviruses and no wild polioviruses detected.
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