Results 1 to 10 of about 7,171 (205)

Coliphages of the human urinary microbiota. [PDF]

PLoS ONE, 2023
Due to its frequent association with urinary tract infections (UTIs), Escherichia coli is the best characterized constituent of the urinary microbiota (urobiome). However, uropathogenic E. coli is just one member of the urobiome. In addition to bacterial
Elias Crum, Zubia Merchant, Adriana Ene, Taylor Miller-Ensminger, Genevieve Johnson, Alan J Wolfe, Catherine Putonti   +6 more
doaj   +7 more sources

A Bayesian Model for Estimation of Virus Reduction in Potable Reuse Treatment Trains and Quantitative Microbial Risk Assessment of Waterborne Viral Pathogens. [PDF]

Risk Anal
ABSTRACT Understanding virus occurrence and reduction at advanced treatment facilities for potable water reuse constitutes a high‐priority research need to protect human health and to enhance available water supply alternatives. The objectives were to (1) determine log reduction values (LRVs) of 15 viruses by advanced wastewater treatment; (2) evaluate
Schijven JF, Teunis PFM, Betancourt WQ.
europepmc   +2 more sources

Diverse Temperate Coliphages of the Urinary Tract [PDF]

Viruses
While Escherichia coli can be found in the bladders of females without lower urinary tract symptoms, its presence is often associated with urinary tract infections (UTIs). The genomic plasticity of E. coli, including urogenital strains, is largely shaped
Haley Atkins, Natalie Stegman, Catherine Putonti   +2 more
doaj   +2 more sources

Evaluation and Comparison of the UV-LED Action Spectra for Photochemical Disinfection of Coliphages and Human Pathogenic Viruses [PDF]

Microorganisms
Ultraviolet (UV) disinfection is a powerful method for inactivating viruses. However, comparative wavelength-dependent sensitivities among human viruses and bacteriophages remain poorly characterized.
Kazuaki Mawatari, Yushi Onoda, Yasuko Kadomura-Ishikawa, Takahiro Emoto, Momoka Yamaguchi, Nozomi Hirano, Sae Toda, Mina Matsubara, Takashi Uebanso, Toshihiko Aizawa, Shigeharu Yamauchi, Yasuo Fujikawa, Tomotake Tanaka, Xing Li, Eduardo Suarez-Lopez, Richard J. Kuhn, Ernest R. Blatchley, Akira Takahashi   +17 more
doaj   +2 more sources

Virus Log Reduction Values and Dominant Mechanisms in Full-Scale Secondary Biological Wastewater Treatment Systems. [PDF]

Water Environ Res
For secondary treatment, the dominant virus removal mechanism varies based on system type and method(s) used to quantify virus reduction. This study demonstrates that secondary treatment can achieve significant virus reduction, but regulatory crediting for direct potable reuse may still not be justified.
Wang P, Hill T, Morrison C, Crank K, Batista J, Gerrity D.   +5 more
europepmc   +2 more sources

Recent Advances in the Molecular Mechanisms of Bacterial Anti-Phage Defence Systems. [PDF]

Microb Biotechnol
Panoptes as an example for an antiphage system consists of OptS producing a cyclic dinucleotide that prevents activation of OptE, a transmembrane protein. Phage T4 infection introduces the sponge protein Acb2 that adsorbs the cyclic dinucleotide thus activating OptE which disrupts the cell membrane aborting phage infection.
Brüssow H.
europepmc   +2 more sources

Phage portal proteins counteract stringent-response–mediated restriction [PDF]

Nature Communications
Bacteria restrict viral replication not only through dedicated defense systems but also by entering physiological states that limit cellular resources, yet how phages overcome such host-imposed barriers remains unclear.
Kristina Kronborg, Luokai Wang, Muriel Leandra Schicketanz, Kenn Gerdes, Yong Everett Zhang   +4 more
doaj   +2 more sources

Carboxyl-Terminal Region of the Maturation Protein of RNA Coliphage Qβ Mediates Host Attachment, Virion Formation, and Cell Lysis. [PDF]

Genes Cells
The capsid of the single‐stranded RNA coliphage Qβ has a maturation (A2) protein that penetrates the capsid. The N‐terminal β‐region of A2 is exposed on the surface, and the C‐terminal α‐region is located inside the capsid and binds the genomic RNA. In this study, we showed that Qβ attached to the F‐pilus of the host via A2.
Kajitani M, Hakoshima N, Inokuchi Y.
europepmc   +2 more sources

Capsid Integrity Detection of Enteric Viruses in Reclaimed Waters [PDF]

Viruses
Climate change, unpredictable weather patterns, and droughts are depleting water resources in some parts of the globe, where recycling and reusing wastewater is a strategy for different purposes. To counteract this, the EU regulation for water reuse sets
Pablo Puchades-Colera, Azahara Díaz-Reolid, Inés Girón-Guzmán, Enric Cuevas-Ferrando, Alba Pérez-Cataluña, Gloria Sánchez   +5 more
doaj   +2 more sources

Control of Escherichia coli in Fresh-Cut Mixed Vegetables Using a Combination of Bacteriophage and Carvacrol [PDF]

Antibiotics, 2023
The continual emergence of antibiotic-resistant bacteria and the slow development of new antibiotics has driven the resurgent interest in the potential application of bacteriophages as antimicrobial agents in different medical and industrial sectors.
Maryanne Kuek, Sarah K. McLean, Enzo A. Palombo   +2 more
doaj   +2 more sources