A5064596754- Viral gastroenteritis research and epidemiology
- Escherichia coli research studies
- SARS-CoV-2 and COVID-19 Research
- Bacterial Infections and Vaccines
- Congenital Anomalies and Fetal Surgery
- Parasitic infections in humans and animals
- Respiratory viral infections research
- Infective Endocarditis Diagnosis and Management
- Parasitic Infections and Diagnostics
- SARS-CoV-2 detection and testing
- Pneumonia and Respiratory Infections
- vaccines and immunoinformatics approaches
- Bacteriophages and microbial interactions
- CRISPR and Genetic Engineering
- Clostridium difficile and Clostridium perfringens research
- Transgenic Plants and Applications
- Influenza Virus Research Studies
- Animal Disease Management and Epidemiology
- Vector-Borne Animal Diseases
- Enterobacteriaceae and Cronobacter Research
- Immunodeficiency and Autoimmune Disorders
- Odor and Emission Control Technologies
- Viral Infections and Immunology Research
- Vector-borne infectious diseases
- Bacterial Genetics and Biotechnology
Ministerio de Salud - Provincia de Buenos Aires
2020-2024
Ministerio de Salud
2021-2023
National University of Comahue
2010-2018
Helios Salud
2012
The COVID-19 pandemic has lately been driven by Omicron. This work aimed to study the dynamics of SARS-CoV-2 Omicron lineages during third and fourth waves in Argentina. Molecular surveillance was performed on 3431 samples from Argentina, between EW44/2021 EW31/2022. Sequencing, phylogenetic phylodynamic analyses were performed. A differential dynamic found. wave associated with lineage BA.1, characterized a high number cases, very fast displacement Delta, doubling times 3.3 days low level...
We describe nine patients (eight aged <1 year) clinically diagnosed with pertussis yet laboratory-confirmed Bordetella holmesii infections, a human pathogen normally isolated from blood. Most reported cough and cold symptoms. No death was reported. report B. isolation in infants respiratory symptoms Argentina.
SARS-CoV-2 variants with concerning characteristics have emerged since the end of 2020. Surveillance was performed on a total 4,851 samples from capital city and 10 provinces Argentina, during 51 epidemiological weeks (EWs) that covered first wave ongoing second COVID-19 pandemic in country (EW 44/2020 to EW 41/2021). The surveillance strategy mainly based Sanger sequencing Spike coding region allows identification signature mutations associated variants. In addition, whole-genome sequences...
The objective of this study was to estimate the prevalence human T cell lymphotropic virus (HTLV)-1/2, HIV-1, hepatitis B (HBV), Trypanosoma cruzi, Treponema pallidum and Toxoplasma gondii infections identify subtypes/subgroups HTLV-1/2 among pregnant women (PW) from non-endemic provinces Argentina.Methods A total 2403 samples were screened for confirmed by western blot PCR. long terminal repeat (LTR) HTLV-1 HTLV-2 amplified. Phylogenetic analysis performed Neighbour Joining using molecular...
In Argentina, hemolytic uremic syndrome (HUS) caused by Shiga toxin-producing Escherichia coli (STEC-HUS) infection is endemic, and reliable data about prevalence risk factors have been available since 2000. However, information STEC-associated bloody diarrhea (BD) limited. A prospective study was performed during the period October 2018-June 2019 in seven tertiary-hospitals 18 referral units from different regions, aiming to determine (i) frequency of STEC-positive BD cases 714 children...
Abstract Cystic echinococcosis caused by Echinococcus granulosus sensu lato is one of the most important helminth zoonoses in world; it affects both humans and livestock. The disease endemic Argentina highly province Neuquén. Considerable genetic phenotypic variation has been demonstrated E. granulosus, ten different genotypes (G1–G10) have identified using molecular tools. may be considered a species complex, comprised stricto (G1–G3), equinus (G4), ortleppi (G5) canadensis (G6–G10). In...
The second wave of COVID-19 occurred in South America early 2021 and was mainly driven by Gamma Lambda variants. In this study, we aimed to describe the emergence local genomic diversity SARS-CoV-2 variant Argentina, from its initial entry into country until detection ceased. Molecular surveillance conducted on 9356 samples Argentina between October 2020 April 2022, sequencing, phylogenetic, phylogeographic analyses were performed. Our findings revealed that first detected January steadily...
Shiga toxin‐producing Escherichia coli (STEC) O157:H7 is a worldwide concern. Cattle are their main reservoir and may contaminate watercourses through manure. We characterized collection of 38 STEC strains isolated from surface water in feedlots areas (puddles inside pens formed after the rainfall or by spill around drinking troughs, small courses lagoons, runoff). Nineteen (50·0%) harboured stx2a/stx2c genes, 18 (47·4%) stx2c one stx1a/stx2c. All eae, ehxA, rfbO157 fliCH7 putative virulence...
Shiga toxin-producing Escherichia coli strains are worldwide associated with sporadic human infections and outbreaks. In this work, we report the availability of high-quality draft whole-genome sequences for 19 O157:H7 isolated in Argentina.
El 25 de abril 2009, a menos un mes la detección en México del primer humano con virus Influenza A(H1N1), enfermedad ya se había propagado más 40 países superando los 10 000 casos notificados. Dada su naturaleza impredecible, este tipo requiere métodos diagnósticos apropiados, confiables y seguros, pero que también estén al alcance laboratorios clínicos. Mediante el estudio 291 muestras pacientes sospecha infección por A(H1N1) Neuquén, Argentina, presente trabajo compara dos diagnóstico...
There is a global trend toward intensive livestock breeding, which tends to increase the microbial load in environment as well presence of volatile compounds and dust that can cause health issues. Cattle major producer Escherichiacoli (E. coli), group foodborne bacteria associated with severe human diseases, Neuquén province Argentina has one highest rates uremic hemolytic syndrome incidence world. This paper presents results two sampling events E. coli at 39 sites La Paisana ranch (LPR),...
Coinfection with two SARS-CoV-2 viruses is still a very understudied phenomenon. Although next generation sequencing methods are sensitive to detect heterogeneous viral populations in sample, there no standardized method for their characterization, so clinical and epidemiological importance unknown.