Results 11 to 20 of about 14,287 (299)
Background Sanitary quality of recreational waters worldwide is assessed using fecal indicator bacteria (FIB), such as Escherichia coli and enterococci. However, fate and transport characteristics of FIB in aquatic habitats can differ from those of viral
Brian R. McMinn+3 more
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The impact of bacteriophages in the human gut microbiome remains poorly understood. Here, the authors characterize coliphages isolated from a large cohort of 1-year-old infants and show that temperate coliphages dominate, while virulent ones have greater
Aurélie Mathieu+12 more
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Morphological Variants of Coliphage P1 [PDF]
Lysates of P1 from all hosts tested contained at least three morphological variants with respect to head size. These were termed “big” (P1B), “small” (P1S), and “minute” (P1M). Since successive clonings of plaques isolated on many different hosts failed to change the proportions of the variants, we concluded that the production of variants
Donald H. Walker, Thomas F. Anderson
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Background Bacteria used as indicators for pathogenic microorganisms in water are not considered adequate as enteric virus indicators. Surface water from a tropical high-altitude system located in Mexico City that receives rainwater, treated and non ...
Mazari-Hiriart Marisa+3 more
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The influence of the mode of administration in the dissemination of three coliphages in chickens [PDF]
Escherichia coli can cause severe respiratory and systemic infections in chickens, and it is often associated with significant economic losses in the poultry industry.
A. Nicolau+33 more
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The Tum Protein of Coliphage 186 Is an Antirepressor [PDF]
The tum gene of coliphage 186, encoded on a LexA controlled operon, is essential for UV induction of a 186 prophage. Primer extension analysis is used to confirm that Tum is the sole phage function required for prophage induction and that it acts against the maintenance repressor, CI, to relieve repression of the lytic promoters, pR and pB, and thereby
Shearwin, K., Brumby, A., Egan, J.
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Occurrence of pathogenic microorganisms in small drinking-water systems in Costa Rica
This study describes the quality of drinking water sampled over 2 years (2018 and 2019) from 20 ASADAS (Spanish acronym for Administrative Associations for Water and Sewer Systems) in Costa Rica.
Kenia Barrantes+9 more
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Coliphages as indicators of primary wastewater treatment efficiency by constructed wetlands
Constructed wetlands are an efficient and cost-effective system for the treatment of wastewater that can be reused for diverse purposes, including irrigation; however, few studies have determined the efficiency of microbial removal by constructed ...
Gisela Hernandez-Rivera+2 more
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Partial Characterization of Coliphage WPK and a Comparison with Coliphage T3 [PDF]
AbstractColiphage WPK was originally isolated from sewage in Kiel, Germany, because its plaque diameter continued to expand for days. Electron microscopy revealed an isometric capsid with dimensions of 54 nm between opposite apices, and a short, noncontractile tail 16 nm long, placing phage WPK into morphogroup C1.
Siegfried Maier, Lisa Loeffelholz
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Sorbitol MacConkey agar and wastewaters` coliphages [PDF]
A total of 114 samples collected from hospital wastewaters and rivers in Addis Ababa, Ethiopia were tested for non-sorbitol fermenting bacteria and coliphages. Sorbitol MacConkey agar is mainly used in the detection of E. coli O157:H7.
Tesfaye Bedada+16 more
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