A5040577783- Viral gastroenteritis research and epidemiology
- Escherichia coli research studies
- Antibiotic Resistance in Bacteria
- Listeria monocytogenes in Food Safety
- Essential Oils and Antimicrobial Activity
- Microbial Inactivation Methods
- Salmonella and Campylobacter epidemiology
- Bacterial biofilms and quorum sensing
- Clostridium difficile and Clostridium perfringens research
- Enterobacteriaceae and Cronobacter Research
- Neonatal and Maternal Infections
- Bacterial Identification and Susceptibility Testing
- Pneumonia and Respiratory Infections
- Antimicrobial Resistance in Staphylococcus
- Maternal and Neonatal Healthcare
- Tuberculosis Research and Epidemiology
- Spectroscopy and Chemometric Analyses
- Streptococcal Infections and Treatments
- Vibrio bacteria research studies
- Nematode management and characterization studies
- Public Health and Environmental Issues
- Craniofacial Disorders and Treatments
- Infections and bacterial resistance
- Child and Adolescent Health
- Influenza Virus Research Studies
Universidad de la República
2007-2024
Ministerio de Ganadería Agricultura y Pesca
2017-2024
Centro Hospitalario Pereira Rossell
2011-2024
Ministerio de Salud Pública
2011-2024
Medicina
2004
The aim of this work was to study the prevalence Listeria monocytogenes in foods obtained retail shops and food industries located Montevideo-Uruguay, identify serogroups isolates. Three-thousand one-hundred seventy-five samples (frozen, deli meats, ready-to-eat cheese) were analyzed. isolates serogrouped by multiplex PCR serotyped conventional procedure. Genetic comparisons performed using pulsed-field gel electrophoresis on a sub-set belonging same serotype successively recovered from...
One hundred and twenty-six epidemiologically sequential, unrelated, carbapenem-resistant Acinetobacter baumannii isolates from nine hospitals in six countries of South America were collected between July 2013 June 2014. Genes coding for Ambler class D B carbapenemases sought by PCR. All typed using the 3-locus sequence typing blaOXA-51-like sequence-based techniques. The blaOXA-23 gene was recovered all participating seven medical centres. blaOXA-72 only two centres Guayaquil city, Ecuador....
ObjectivesTo analyse the prevalence of resistance to β-lactams and plasmid-mediated quinolone in Enterobacteriaceae paediatric hospital Uruguay.
We studied 13 extended-spectrum beta-lactamase (ESBL)-producing enteropathogenic Escherichia coli isolates from children suffering acute diarrhea in Uruguay. ESBL characterization crude extracts showed a single band at pI 5.4. PCR amplification and sequencing data allowed identification of blaPER-2 blaTEM-116. Retrospective analysis suggests that these strains were disseminated the community, even if unnoticed, prior to their access hospital environment more than decade ago.
Abstract Listeriosis is one of the most common nervous diseases in ruminants, and caused almost exclusively by Gram‐positive bacterium, Listeria monocytogenes . However, there are few reports listeriosis associated with L. innocua , which genetically closely related to but considered non‐pathogenic. In this work, we report two cases suppurative meningoencephalitis apparently previously healthy ruminants from different farms, strains were recovered. The whole genomes both isolates sequenced,...
Vancomycin is the cornerstone in treating methicillin-resistant Staphylococcus aureus (MRSA) infections. However, therapeutic failures can occur when MRSA strains with decreased susceptibility to glycopeptides (DSG) are involved. The aim of this study was detect and characterize DSG recovered from children invasive diseases at a reference pediatric hospital between 2009 2019. Fifty-two were screened using agar plates vancomycin 3 4 mg/L (BHI-3 BHI-4); VITEK2 system; standard macro E-tests....
Shiga toxin-producing Escherichia coli (STEC) and Listeria monocytogenes are worldwide recognized zoonotic pathogens. Recent reports have emerged about the circulation of antimicrobial-resistant STEC L. isolates. To assess frequency antimicrobial resistance related genes in these pathogens, we studied 45 50 isolates locally recovered from different sources. Antimicrobial susceptibility testing was performed by disk-diffusion method, genomic sequences three selected all were analyzed for...
The aim of this study was to characterize phenotypically and genotypically 27 mecA positive Staphylococcus aureus strains with oxacillin MICs ≤2μg/ml by Vitek 2, isolated in different regions Uruguay. Susceptibility cefoxitin studied gradient diffusion, disk diffusion cefoxitin, Phoenix MicroScan systems. PBP2a determined. SCCmec typing performed the isolates were compared PFGE. Twenty-six susceptible oxacillin; one strain 3 diffusion. panels detected methicillin resistance 25 strains,...
A small (8.2-kb) ColE1 plasmid encoding TEM-144 (a new beta-lactamase with a ceftazidimase profile) was sequenced by gene-walking strategy. The bla(TEM) allele carried on Tn2 element, disrupting Rom protein gene. differs from TEM-1 two mutations (R164C and E240K) the ceftazidime-hydrolyzing TEM-91 one mutation (T182M).
We analyzed 90 nonduplicates community-associated methicillin-resistant S. aureus (CA-MRSA) strains isolated from skin and soft-tissue infections. All were mecA positive. Twenty-four of the showed inducible macrolide-lincosamide-streptogramin B resistance. produced<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>α</mml:mi></mml:math>-toxin; 96% 100% them displayed positive results for lukS-F cna genes, respectively. Eigthy-five expressed capsular polysaccharide serotype 8....
ABSTRACT: Listeriosis is an infectious disease caused by bacteria of the genus Listeria, neurological form being more common in ruminants. There are many reports listeriosis small ruminants region that includes Brazil, Argentina and Uruguay. However, these diagnoses were mainly based on histological lesions central nervous system (CNS) without isolation characterization involved Listeria strains. The aim this study was to report sheep goats cases from 2016 2021 northwestern diagnosis made...
This is the first study showing impact of 13-valent pneumococcal conjugate vaccine on meningitis in Latin America; a significant (63.5%) reduction hospitalization was observed during 6 years after starting vaccination. A 90% vaccines 7/13 serotypes ( P < 0.0001). After vaccination, all strains were penicillin susceptible. Mortality had 71%.
A pastured 2-y-old cross-breed bull developed brainstem encephalitis (rhombencephalitis); Listeria monocytogenes was isolated from the brain. In brainstem, there perivascular cuffing, multiple microabscesses, and positive immunostaining for L. monocytogenes. Samples of bovine feces, water, feedstuffs, milking parlor soil, bulk tank milk were collected dairy farm. Seven isolates genus obtained, 6 innocua 1 monocytogenes, which found in pasture where grazed. Both belonged to serotype 4b...
Introducción: Salmonella sp puede causar infecciones asintomáticas, gastroenteritis, bacteriemia e focales como meningitis y osteomielitis.
Introducción: La diarrea con sangre es un motivo frecuente de admisión hospitalaria en niños, gastroenteritis aguda; la mayoría los casos se tratan infecciones leves y autolimitadas, pero pueden producirse complicaciones graves. Objetivos: Describir etiología características clínico- evolutivas niños menores 15 años hospitalizados por el Hospital Pediátrico, Centro Hospitalario Pereira Rossell entre 2012- 2023. Materiales métodos: Estudio retrospectivo mediante revisión historias registros...