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Molecular cloning, sequencing, expression and purification of Alkhumra hemorrhagic fever virus capsid protein in Saudi Arabia.
J Infect Dev Ctries
December 2024
Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia.
Introduction: Alkhumra hemorrhagic fever virus (AHFV) is a newly discovered virus in the Flaviviridae family. It was discovered in 1995 among animal handlers in Saudi Arabia. AHFV spreads through close contact with infected animals and tick bites.
View Article and Find Full Text PDFDetection of O25b-ST131 clone in extended spectrum beta-lactamase-producing E. coli from urinary tract infections in Mexico.
J Infect Dev Ctries
December 2024
Instituto Nacional de Salud Pública (INSP), Centro de Investigación Sobre Enfermedades Infecciosas (CISEI), Departamento de Diagnóstico Epidemiológico. Cuernavaca, Morelos, México.
Introduction: Escherichia coli has emerged as an important pathogen in urinary tract infections (UTIs) due to the rapid acquisition of antibiotic resistance genes. This enhances the ability of E. coli to colonize and creates therapeutic challenges within the healthcare system.
View Article and Find Full Text PDFGenomic and evolutionary analysis of epidemic porcine hepatitis E virus (HEV) in the Tibetan Plateau was performed. Faecal samples were collected from 216 Tibetan pigs and 78 Tibetan Yorkshire (Large White) and 53 tissue samples from Yorkshire from the Linzhi City slaughterhouse. Total RNA was extracted from faeces and fragments of HEV open reading frame 2 (ORF2) detected by reverse transcription and nested polymerase chain reaction (RT-nPCR) and cloned.
View Article and Find Full Text PDFUnveiling cross-reactivity: implications for immune response modulation in cancer.
Brief Bioinform
November 2024
Program of Cell and Gene Therapy, Division of Experimental and Translational Research, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Antigen recognition by CD8+ T-cell receptors (TCR) is crucial for immune responses to pathogens and tumors. TCRs are cross-reactive, a single TCR can recognize multiple peptide-Human Leukocyte Antigen (HLA) complexes. The study of cross-reactivity can support the development of therapies focusing on immune modulation, such as the expansion of pre-existing T-cell clones to fight pathogens and tumors.
View Article and Find Full Text PDF[Epidemiology analysis of carbapenemase-producing in a hospital in Henan Province from 2021 to 2023].
Zhonghua Yu Fang Yi Xue Za Zhi
January 2025
Department of Reproductive Medicine, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou450002, China.
To analyze the epidemiological characteristics of drug resistance genes of carbapenemase-producing Escherichia coli (CPECO) in Henan Province Hospital of Traditional Chinese Medicine from 2021 to 2023, providing data support and theoretical basis for controlling nosocomial infections of CPECO. Using a cross-sectional study, 30 carbapenem-resistant Escherichia coli (CRECO) strains confirmed by VITEK-2 Compact identification and drug sensitivity test in the Clinical Microbiology Laboratory of Henan Province Hospital of Traditional Chinese Medicine from 2021 to 2023 were tested, using carbapenemase inhibitor enhancement test to conduct preliminary screening of carbapenemases, and colloidal gold immunochromatography and polymerase chain reaction (PCR) were used to determine the phenotypes and genotypes of common carbapenemases () respectively, and the genotypes () of common extended Spectrum beta-lactamases (ESBL) were confirmed using PCR. The PCR amplification products of carbapenemase and ESBL positive strains were Sanger-sequenced, and the sequencing products were compared on the Blast website to determine the exact carbapenemase and ESBL genotypes.
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