Monitoring of SARS‐CoV‐2 RNA in wastewater: A surveillance tool to foresee infection's evolution in the Mexican Caribbean

Monitoring of SARS‐CoV‐2 RNA in wastewater: A surveillance tool to foresee infection's evolution in the Mexican Caribbean

The study aims to determine SARS‐CoV‐2 RNA in sewage of Cancun wastewater treatment plants, the main touristic destination of Mexico, and to estimate the infected persons during the sampling period. SARS‐CoV‐2 RNA traces were detected in the inlet of the five plants during almost all the sampling mo...

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Bibliographic Details
Published in:Water environment research Vol. 95; no. 4; pp. e10859 - n/a
Main Authors: Hernández‐Terrones, Laura Margarita, Carrillo‐Reyes, Julián, Ayala‐Godoy, Jairo A., Guerrero‐Ruiz, Eugenio, Vargas, Leslie Meredith García, Prado‐Guevara, Bruno Abraham, Rodríguez‐Abraham, Melissa Fernanda, Buitrón, Germán
Format: Journal Article
Language:English
Published: United States Blackwell Publishing Ltd 01-04-2023
Subjects:
ANOVA
Caribbean Region
COVID-19 - epidemiology
Effluents
Humans
Influents
Markov chain Monte Carlo simulation
Markov chains
Mexican Caribbean
Mexico
Monte Carlo simulation
Nucleic acids
Plants
Ribonucleic acid
RNA
RNA, Viral - genetics
Sampling
SARS-CoV-2 - genetics
SARS‐CoV‐2
Severe acute respiratory syndrome
Severe acute respiratory syndrome coronavirus 2
Sewage
Simulation
Statistical methods
Surveillance
Variance analysis
Viral diseases
Wastewater
Wastewater treatment
Wastewater treatment plants
Mexico
Caribbean Region
Mexican Caribbean
SARS-CoV-2
wastewater
Markov chain Monte Carlo simulation
ANOVA
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Summary:The study aims to determine SARS‐CoV‐2 RNA in sewage of Cancun wastewater treatment plants, the main touristic destination of Mexico, and to estimate the infected persons during the sampling period. SARS‐CoV‐2 RNA traces were detected in the inlet of the five plants during almost all the sampling months. However, there is no presence of SARS‐CoV‐2 RNA traces in the effluent of the five WWTPs during the study period. ANOVA analysis showed differences in the concentrations of RNA traces of SARS‐CoV‐2 between the sample dates, but no differences were found from one WWTP to another. Estimated infected individuals by Markov chain Monte Carlo simulation are higher (between 77% and 91%) than the cases reported by the health authority. Wastewater monitoring and the estimation of infected individuals are a helpful tool, because estimation provides early warning signs on how broadly SARS‐CoV‐2 is circulating in the city, and led to the authorities to take measures wisely. Practitioner Points There is no presence of SARS‐CoV‐2 RNA traces in the effluent of the facilities, suggesting the effectiveness of treatment. Surveillance of viral RNA concentrations at treatment plants revealed presence in the influent of five plants Estimated infected individuals by MCMC simulation are higher than cases reported by health authority Environmental surveillance approach in wastewater influent is helpful to identify the clusters and to take informed decisions This study evaluates wastewater treatment plants of the main touristic destination of Mexican Caribbean to identify SARS‐CoV‐2 RNA traces and to estimate the number of the infected persons. SARS‐CoV‐2 RNA traces were detected only in the inlet of the five plants. Wastewater monitoring and the estimation of infections provide early warning signs of SARS‐CoV‐2 circulation in the city.
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ISSN:1061-4303
1554-7531
DOI:10.1002/wer.10859