Escherichia coli isolates from 217 children in Myanmar with diarrhea were investigated for the presence of virulence genes related to diarrhea by colony hybridization and PCR. The genes examined were lt, stI, stII, stx1, stx2, eae, bfp, pCVD (which is the representative gene of plasmid of pCVD of EAEC), and ial (which is invasion-associated locus of the invasion plasmid found in EIEC). Isolates from 47 of 217 children (21.7%) possessed virulence genes characteristic of diarrheagenic E. coli. No instance was found of co-existence of different E. coli strains with different virulence genes in the same patient. Diarrheagenic E. coli are currently classified into five categories based on their virulence markers: ETEC, EHEC, EPEC, EAEC, and EIEC. Of the 47 isolates examined, 30 were EAEC, 12 were EPEC and 5 were ETEC. Susceptibility tests for antimicrobial agents showed that almost all diarrheagenic isolates were resistant to penicillin, tetracycline and streptomycin. However, the majority of strains were sensitive to cephalexin, nalidixic acid and norfloxacin. In particular, 42 of the 47 isolates were sensitive to norfloxacin, which is a fluoroquinolone. This study shows EAEC and EPEC are responsible for sporadic diarrhea in Myanmar and fluoroquinolones appear to be effective in the treatment of these patients.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1348-0421.2008.00001.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparison of Illumina and Oxford Nanopore sequencing data quality for Clostridioides difficile genome analysis and their application for epidemiological surveillance.
BMC Genomics
January 2025
Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.
Background: The burden of Clostridioides difficile as a nosocomial- and community-acquired pathogen has been increasing over the recent decades, including reports of severe outbreaks. Molecular and virulence genotyping are central for the epidemiological surveillance of this pathogen, but need to balance accuracy and rapid turnaround time of the results. While Illumina short-read sequencing has been adopted as the gold standard to investigate C.
View Article and Find Full Text PDFGenes related to neural tube defects and glioblastoma.
Sci Rep
January 2025
Department of Biochemistry and Molecular Biology, Shanxi Key Laboratory of Birth Defect and Cell Regeneration, Key Laboratory of Coal Environmental Pathogenicity and Prevention (Ministry of Education, China, Shanxi Medical University, No. 56, Xinjian South Road, Yingze District, Taiyuan City, 030000, Shanxi Province, China.
There are many similarities between early embryonic development and tumorigenesis. The occurrence of neural tube defects (NTDs) and glioblastoma (GBM) are both related to the abnormal development of neuroectodermal cells. To obtain genes related to both NTDs and GBM, as well as small molecule drugs with potential clinical application value.
View Article and Find Full Text PDFEssential oils modulate virulence phenotypes in a multidrug-resistant pyomelanogenic Pseudomonas aeruginosa clinical isolate.
Sci Rep
January 2025
School of Biotechnology, Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India.
Pyomelanogenic P. aeruginosa, frequently isolated from patients with urinary tract infections and cystic fibrosis, possesses the ability to withstand oxidative stress, contributing to virulence and resulting in persistent infections. Whole genome sequence analysis of U804, a pyomelanogenic, multidrug-resistant, clinical isolate, demonstrates the mechanism underlying pyomelanin overproduction.
View Article and Find Full Text PDFMetagenomic global survey and in-depth genomic analyses of Ruminococcus gnavus reveal differences across host lifestyle and health status.
Nat Commun
January 2025
Leiden University Center for Infectious Diseases (LUCID), Leiden University Medical Center, Leiden, The Netherlands.
Ruminococcus gnavus is a gut bacterium found in > 90% of healthy individuals, but its increased abundance is also associated with chronic inflammatory diseases, particularly Crohn's disease. Nevertheless, its global distribution and intraspecies genomic variation remain understudied. By surveying 12,791 gut metagenomes, we recapitulated known associations with metabolic diseases and inflammatory bowel disease.
View Article and Find Full Text PDFPotential risk of microplastics in plateau karst lakes: Insights from metagenomic analysis.
Environ Res
January 2025
School of Life Science and Engineering, Southwest University of Science and Technology,Mianyang 621010, Sichuan, P.R. China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P. R. China. Electronic address:
Microplastic (MP) pollution has become one of global concern. While MP pollution in lakes has been well studied, research on MP sources, distribution, and ecological risks in the Tibetan Plateau is limited. We systematically investigated the MP abundance and distribution in alpine travertine lakes in Jiuzhai nature reserve located in east edge of Qinghai-Tibetan Plateau and assessed the distributions of microbiomes, antibiotic resistance genes (ARGs), and virulence factor genes (VFGs) in water, sediments, and MPs, using macrogenomics.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!