Results 11 to 20 of about 14,287 (299)

Decay of infectious adenovirus and coliphages in freshwater habitats is differentially affected by ambient sunlight and the presence of indigenous protozoa communities

open access: yesVirology Journal, 2020
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
doaj   +2 more sources

Virulent coliphages in 1-year-old children fecal samples are fewer, but more infectious than temperate coliphages

open access: yesNature Communications, 2020
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
doaj   +2 more sources

Morphological Variants of Coliphage P1 [PDF]

open access: bronzeJournal of Virology, 1970
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
openaire   +5 more sources

Comparative study of enteric viruses, coliphages and indicator bacteria for evaluating water quality in a tropical high-altitude system

open access: yesEnvironmental Health, 2009
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
doaj   +2 more sources

The influence of the mode of administration in the dissemination of three coliphages in chickens [PDF]

open access: yesPoultry Science, 2009
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
core   +2 more sources

The Tum Protein of Coliphage 186 Is an Antirepressor [PDF]

open access: hybridJournal of Biological Chemistry, 1998
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.
openaire   +6 more sources

Occurrence of pathogenic microorganisms in small drinking-water systems in Costa Rica

open access: yesJournal of Water and Health, 2022
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
doaj   +1 more source

Coliphages as indicators of primary wastewater treatment efficiency by constructed wetlands

open access: yesJournal of Water and Health, 2023
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
doaj   +1 more source

Partial Characterization of Coliphage WPK and a Comparison with Coliphage T3 [PDF]

open access: yesMicrobiology and Immunology, 1992
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
openaire   +3 more sources

Sorbitol MacConkey agar and wastewaters` coliphages [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2023
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
doaj   +1 more source

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