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Díaz SM, Barrios ME, Galli L, Cammarata RV, Torres C, Fortunato MS, García López G, Costa M, Sanguino Jorquera DG, Oderiz S, Rogé A, Gentiluomo J, Carbonari C, Rajal VB, Korol SE, Gallego A, Blanco Fernández MD, Mbayed VA. Microbiological hazard identification in river waters used for recreational activities. ENVIRONMENTAL RESEARCH 2024; 247:118161. [PMID: 38220078 DOI: 10.1016/j.envres.2024.118161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/20/2023] [Accepted: 01/07/2024] [Indexed: 01/16/2024]
Abstract
Pathogenic bacteria, viruses, and parasites can cause waterborne disease outbreaks. The study of coastal water quality contributes to identifying potential risks to human health and to improving water management practices. The Río de la Plata River, a wide estuary in South America, is used for recreational activities, as a water source for consumption and as a site for sewage discharges. In the present study, as the first step of a quantitative microbial risk assessment of the coastal water quality of this river, a descriptive study was performed to identify the microbial pathogens prevalent in its waters and in the sewage discharged into the river. Two sites, representing two different potential risk scenarios, were chosen: a heavily polluted beach and an apparently safe beach. Conductivity and fecal contamination indicators including enterococci, Escherichia coli, F + RNA bacteriophages, and human polyomaviruses showed high levels. Regarding enterococci, differences between sites were significant (p-values <0.001). 93.3% and 56.5% of the apparently safe beach exceeded the recreational water limits for E. coli and enterococci. Regarding pathogens, diarrheagenic E. coli, Salmonella, and noroviruses were detected with different frequencies between sites. The parasites Cryptosporidium spp. and Giardia duodenalis were frequently detected in both sites. The results regarding viral, bacterial, and parasitic pathogens, even without correlation with conventional indicators, showed the importance of monitoring a variety of microorganisms to determine water quality more reliably and accurately, and to facilitate further studies of health risk assessment. The taxonomic description of microbial pathogens in river waters allow identifying the microorganisms that infect the population living on its shores but also pathogens not previously reported by the clinical surveillance system.
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Affiliation(s)
- Sofía Micaela Díaz
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Melina Elizabeth Barrios
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Lucía Galli
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina. Av. 60 y 118 (B1900), La Plata, Argentina
| | - Robertina Viviana Cammarata
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina
| | - Carolina Torres
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina
| | - María Susana Fortunato
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Salud Pública e Higiene Ambiental, Junín 954 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina
| | - Guadalupe García López
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Salud Pública e Higiene Ambiental, Junín 954 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina
| | - Magdalena Costa
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina. Av. 60 y 118 (B1900), La Plata, Argentina
| | - Diego Gastón Sanguino Jorquera
- Instituto de Investigaciones para la Industria Química (INIQUI), Universidad Nacional de Salta (UNSa) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Bolivia 5150 (A4408FVY), Salta, Argentina
| | - Sebastian Oderiz
- Servicio Fisiopatogenia, Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas-ANLIS "Dr. Carlos G. Malbrán", Av. Vélez Sarsfield 563 (C1282AFF), Buenos Aires, Argentina
| | - Ariel Rogé
- Servicio Fisiopatogenia, Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas-ANLIS "Dr. Carlos G. Malbrán", Av. Vélez Sarsfield 563 (C1282AFF), Buenos Aires, Argentina
| | - Jimena Gentiluomo
- Servicio Fisiopatogenia, Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas-ANLIS "Dr. Carlos G. Malbrán", Av. Vélez Sarsfield 563 (C1282AFF), Buenos Aires, Argentina
| | - Carolina Carbonari
- Servicio Fisiopatogenia, Departamento Bacteriología, Instituto Nacional de Enfermedades Infecciosas-ANLIS "Dr. Carlos G. Malbrán", Av. Vélez Sarsfield 563 (C1282AFF), Buenos Aires, Argentina
| | - Verónica Beatriz Rajal
- Instituto de Investigaciones para la Industria Química (INIQUI), Universidad Nacional de Salta (UNSa) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Bolivia 5150 (A4408FVY), Salta, Argentina; Facultad de Ingeniería. UNSa, Av. Bolivia 5150 (A4408FVY), Salta, Argentina
| | - Sonia Edith Korol
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Salud Pública e Higiene Ambiental, Junín 954 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina
| | - Alfredo Gallego
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Salud Pública e Higiene Ambiental, Junín 954 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina
| | - María Dolores Blanco Fernández
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina.
| | - Viviana Andrea Mbayed
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Instituto de Investigaciones en Bacteriología y Virología Molecular (IBAVIM), Cátedra de Virología, Junín 956 (C1113AAD), Ciudad Autónoma de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 (C1425FQB), Ciudad Autónoma de Buenos Aires, Argentina.
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Gonçalves GRL, Dos Santos PVM, Negreiros-Fransozo ML, Castilho AL, De Troch M. Environmental factors modulated the fatty acid profile of the shrimp Xiphopenaeus spp. in Cananéia and Ubatuba southeast Brazilian coast. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27846-w. [PMID: 37248352 DOI: 10.1007/s11356-023-27846-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 05/19/2023] [Indexed: 05/31/2023]
Abstract
Environmental characteristics influence the fatty acids (FAs) of aquatic organisms. Environmental factors and anthropic actions such as water pollution can impact FA composition. This directly affects the trophic network, especially when low-quality FA is provided to other trophic levels. The omnivore Penaeoidea shrimp is rich in proteins and polyunsaturated fatty acids (PUFA), representing an important node in the trophic web. We compared the FA composition of the commercially exploited seabob shrimp Xiphopenaeus spp. in two distinct coastal sites, Cananéia and Ubatuba, on the southeast Brazilian coast. Cananéia has a low human population density and is a preserved area with nearby mangroves, while Ubatuba is highly urbanised and influenced by tourism (increasing the domestic sewage), with diverse microhabitats but without mangrove influence. We found a total of 29 different FAs in seabob shrimp samples. Saturated FAs and PUFAS were the most representatives. For sex or age (juvenile and adult), deviations were found in the monosaturated FA, ω6, and ω3/ω6. However, FA composition was significantly different between sites, with Ubatuba presenting a lower abundance of FAs than Cananéia. The fatty acid composition of Xiphopenaeus spp. was influenced by environmental quality factors such as dissolved oxygen, chlorophyll, organic matter, and size gradient. The presence of high amounts of organic matter (especially sewage) during decomposition can decrease dissolved oxygen levels, reducing the quality of the first producers and limiting the availability of FAs for other trophic levels. The study suggests that water pollution and mangrove forests can impact the FAs of Xiphopenaeus spp., potentially reducing their nutritional value and causing an imbalance in the transference of FAs.
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Affiliation(s)
- Geslaine Rafaela Lemos Gonçalves
- Scottish Marine Institute, Scottish Association for Marine Science (SAMS), Oban, Argyll, Scotland, UK.
- Institute of Biosciences, Zoology Department, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
| | | | | | - Antonio Leão Castilho
- Institute of Biosciences, Zoology Department, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Marleen De Troch
- Marine Biology, Biology Department, Ghent University, Krijgslaan 281-S8, B-9000, Ghent, Belgium
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Change in the incidence of intestinal diseases caused by parasitic protozoa in the Mexican population during the period (2015-2019) and its association with environmental and socioeconomic risk factors. Parasitol Res 2023; 122:903-914. [PMID: 36820929 DOI: 10.1007/s00436-023-07798-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/13/2023] [Indexed: 02/24/2023]
Abstract
Diarrheal diseases are one of the main health problems worldwide, especially in developing countries with poor health systems, high rates of poverty, and poor nutrition. The main causative agents of diarrheal disease are bacteria, viruses, and parasites; among the latter, the intestinal protozoa Giardia and Entamoeba stand out. In the present work, a observational analysis of the national surveillance data of amebiasis, giardiasis, and other protozoan intestinal infections was carried out. The data issued by the Directorate General of Epidemiology was analyzed to establish its relationship with geography, socioeconomic, and environmental conditions in Mexico during the 2015-2019 period. New cases of amebiasis decreased by 25.03% between 2015 and 2019, while giardiasis and other protozoan intestinal infections remained constant; in all cases, incidence was higher in females than in males, and children under 5 years of age were the most affected. The contribution of environmental conditions (seasonality, temperature, and humidity) and socioeconomic factors in the number of protozoan intestinal infection cases was assessed by a multivariable regression model using a backward selection procedure. Peaks in cases were observed in spring and summer, which are characterized by warm and humid climates. Additionally, states with high humidity and annual average temperature contribute to a notably higher incidence of these parasites, especially annual average temperature, as demonstrated through multivariable linear regression models. Moreover, the majority of these states have the largest population living in poverty with inadequate measures for the distribution, dispensing, and sanitation of water. These data are essential to incidence rate monitoring and focus efforts on eliminating risk factors and improving health programs in Mexico.
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