Comparison of the risk of infection of human rotavirus and astrovirus according to fishing and swimming activities at Las Cañas beach, Uruguay

Author:

Viviana Bortagaray1,Pablo Gamazo2,Sebastián Castro3,Marcos Grilli1,Rodney Colina1,Matias Victoria1ORCID

Affiliation:

1. Laboratory of Molecular Virology, Department of Biological Sciences CENUR Litoral Norte, Sede Salto, Universidad de la República Salto Uruguay

2. Department of Water, CENUR Litoral Norte, Sede Salto, Universidad de la República Salto Uruguay

3. Department of Mathematics and Estadistic from litoral (DMEL), CENUR Litoral Norte, Universidad de la República Salto Uruguay

Abstract

Abstract Aims To estimate the risk of human rotavirus (RV) and astrovirus (HAstV) infections for swimmers and fishers at Las Cañas beach, Uruguay. Methods and Results Surface water samples were collected monthly for 1 year. The dose–response models used were β-Poisson and 1F1 hypergeometric for RV and HAstV, respectively. The probabilities of infection were calculated using a kernel density estimate to fitting the data and then sampling from this distribution (Monte Carlo simulation). The probability of RV infection for fishers was between 0 and 65% and for swimmers was between 0 and 50% (<18 years old) and between 0 and 38% (>18 years old). For HAstV, the probability of infection for fishers was between 0% and 45% and for swimmers was between 0 and 38% (<18 years old) and between 0 and 18% (>18 years old). Conclusions This study suggests that fishers are at higher risk of infection for both viruses compared with swimmers mainly due to higher viral frequency and concentration at the site for fishing activities.

Funder

National Agency of Research and Innovation

Publisher

Oxford University Press (OUP)

Subject

Applied Microbiology and Biotechnology,General Medicine,Biotechnology

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