The effects of different sewage treatments on the viral contamination in rivers which receive water from treatment plants without a final sand filtration step were investigated. They were all heavily contaminated with bacteriophages and human enteric viruses (detected by single step reverse transcription amplification followed by a nested polymerase chain reaction). Bacteriophages, but not faecal indicator organisms, were correlated with viral contamination.
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http://dx.doi.org/10.1016/s0923-2508(01)01255-4 | DOI Listing |
Environ Pollut
January 2025
Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares, Madrid, Spain.
Plastics, as synthetic polymers, are emerging contaminants that can harm organisms and ecosystems. This study investigates the presence of microplastics in sediments of two rivers in western Cuba, assessing their temporal variability, diversity, and characterizing the types of microplastics in these ecosystems. Additionally, the study examines the relationship between microplastic concentrations, the extracellular enzymatic activity of benthic microbial communities, and nutrient levels in sediments.
View Article and Find Full Text PDFPLoS One
January 2025
Molecular Virology Labs, Department of Biosciences, Comsats University Islamabad, Islamabad, Pakistan.
Arsenic-resistant Klebsiella oxytoca strain AT-02 was isolated from the ground water of the Multan region of Pakistan. The strain displayed high arsenite and arsenate resistance as minimal inhibitory concentration (MIC) was 600ppm and 10,000ppm respectively. The high tolerance of the isolated strain towards arsenate can be postulated due to significant increase in biofilm in response to arsenate.
View Article and Find Full Text PDFEnviron Health Insights
January 2025
Department of Medical Microbiology, University of Ghana Medical School, Korle Bu, Accra, Ghana.
Introduction: Access to safe drinking water is crucial for health and survival, yet many developing countries face significant challenges in this regard. In West Africa, rapid urbanisation has outpaced efforts to improve access to potable water, compelling households to rely on private vendors for solutions, particularly through the growing market for sachet water. Widely consumed in Ghana, sachet water has become a convenient and affordable option, with over 37% of the population depending on it.
View Article and Find Full Text PDFFront Bioinform
January 2025
Hakim's Lab, Department of Biology, School of STEM, Diné College, Tuba City, AZ, United States.
Introduction: Flaviviridae comprise a group of enveloped, positive-stranded RNA viruses that are mainly transmitted through either mosquitoes or tick bites and/or contaminated blood, blood products, or other body secretions. These viruses cause diseases ranging from mild to severe and are considered important human pathogens. MicroRNAs (miRNAs) are non-coding molecules involved in growth, development, cell proliferation, protein synthesis, apoptosis, and pathogenesis.
View Article and Find Full Text PDFIntroduction: China implemented a dynamic zero-COVID strategy to curb viral transmission in response to the coronavirus disease 2019 (COVID-19) pandemic. This strategy was designed to inhibit mutation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for COVID-19. This study explores the dynamics of viral evolution under stringent non-pharmaceutical interventions (NPIs) through real-world observations.
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