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Revista Argentina de Microbiología
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Información de la revista
Número
Vol. 52. Núm. 4.
Páginas 259-352 (Octubre - Diciembre 2020)
Editorial
Reflexiones sobre la enseñanza y la difusión de la microbiología
Laura Bonofiglio
Rev Argent Microbiol. 2020;52:259-60
Open access
Microbiología básica
Evaluation of a rapid diagnostic test for the detection of Streptococcus pyogenes in invasive infections
Vanesa Reijtman, M. Eva García, Alejandra Mastroianni, Adela Isasmendi, José L. Pinheiro, Guadalupe Pérez, Claudia Hernandez
Rev Argent Microbiol. 2020;52:261-5
Open access
Microbiología clínica y enfermedades infecciosas
Syphilis seroprevalence among HIV-infected males in Istanbul, Turkey
Muammer Osman Köksal, Hayati Beka, Oğuz Evlice, Sevgi Çiftçi, Fahriye Keskin, Seniha Başaran, Baki Akgül, Haluk Eraksoy, Ali Ağaçfidan
Rev Argent Microbiol. 2020;52:266-71
Highlights

  • The prevalence of syphilis is high in HIV-infected men in Istanbul, Turkey.

  • The rate of syphilis was found to be significantly higher in MSM HIV infected patients than heterosexual HIV infected patients in Turkey.

  • Findings of the study highlight the fact that patients infected with HIV must be screened for syphilis at least annually and must be informed about STDs.

Open access
Incorporation of the rapid HIV test in a sexually-transmitted disease clinic in Buenos Aires: Dramatic increase in the frequency of HIV diagnosis
Nicolas Morando, María Lucía Gallo Vaulet, Asunta Melgar, Marcelo Rodríguez Fermepin, Ricardo Casco, María de los Ángeles Pando
Rev Argent Microbiol. 2020;52:272-7
Highlights

  • The use of the RHT significantly increased the frequency of HIV diagnosis.

  • Approximately one of three individuals had never tested for HIV previously.

  • No access to medical care and irregular condom use associated with no HIV testing.

  • Tendency toward a higher HIV prevalence in patients with no prior HIV testing.

  • Use of RHT slightly incremented the receipt of confirmatory results.

Open access
Microscopic agglutination test: Variables that affect the time of serological confirmation of human leptospirosis cases
Exequiel Scialfa, Mariana Rivero, Sergio Moreno, Marcela Ortiz, Fabricio Bongiorno
Rev Argent Microbiol. 2020;52:278-82
Highlights

  • 64% of cases are confirmed by MAT with the first clinical sample.

  • Human cases of leptospirosis are confirmed 21 days after the onset of clinical signs.

  • Ballum and Canicola were the most reactive serogroups.

  • The confirmation time depends on the distance of the health region from the reference laboratory.

  • The number of serogroups that cross-reacted decreased as the disease progressed.

Open access
Bacteremia and sepsis by Arcanobacterium haemolyticum in a young immunocompetent patient
Julián Verona, Noelia Cecilia Dirialdi, María Virginia Mutti, Marcelo Carlos Scioli, Fernando Andrés Thougnon Islas, Germán Emilio Curi Antún, Lisandro Juan Sgariglia, María Guillermina Homar, José Andrés Legato, Agustina Costa, María Laura Maldonado, José A. Di Conza, Mirta R. Litterio Bürki
Rev Argent Microbiol. 2020;52:283-7
Highlights

  • Bacteremia by Arcanobacterium haemolyticum in a twenty-year-old immunocompetent patient.

  • Rough biotype of this strain correlates with intergenic sequence of aln upstream region.

  • Treatment with vancomycin plus piperacillin/tazobactam was effective.

  • Lemierre's syndrome was discarded.

Open access
Statistical approach to Trichinella infection in horses handled by rural slaughterhouses across five distinctive socioeconomic regions in Mexico
David Solís-Hernández, Karla-Lorena Saucedo-Gutiérrez, Antonio Meza-Lucas, Fabián-Ricardo Gómez-de-Anda, Miriam-Susana Medina-Lerena, Ricardo García-Rodea, María-Teresa Corona-Souza, Miguel-Ángel Pérez-Ramírez, Vicente Vega-Sánchez, Jorge-Luis de-la-Rosa-Arana
Rev Argent Microbiol. 2020;52:288-92
Open access
Dynamics of neutralizing antibodies against Bovine respiratory syncytial virus in a dairy herd from Santa Fe Province, Argentina
Alejandra Ferella, María Sol Perez Aguirreburualde, Ayelen Sammarruco, Viviana Parreño, María José Dus Santos, Marina Mozgovoj
Rev Argent Microbiol. 2020;52:293-7
Open access
Agentes antimicrobianos
Full characterization of an IncR plasmid harboring qnrS1 recovered from a VIM-11-producing Pseudomonas aeruginosa
Alan Elena, Mirta Quinteros, Jose Di Conza, Gabriel Gutkind, Daniela Cejas, Marcela A. Radice
Rev Argent Microbiol. 2020;52:298-304
Highlights

  • Co-occurrence of qnrS and VIM-11 in P. aeruginosa was detected.

  • qnrS1 and blaVIM-11 were located in the different plasmids.

  • qnrS1 harboring plasmid corresponded to IncR group.

  • qnrS1 plasmid was non-conjugative, however it presented an OriT region (transferable plasmid).

  • qnrS1 plasmid also carried aminoglycoside resistance genes.

Open access
Microbiología de alimentos
Lactobacillus pentosus ABHEAU-05: An in vitro digestion resistant lactic acid bacterium isolated from a traditional fermented Mexican beverage
Meyli Claudia Escobar-Ramírez, Judith Jaimez-Ordaz, Valeria Abril Escorza-Iglesias, Gabriela Mariana Rodríguez-Serrano, Elizabeth Contreras-López, Juan Ramírez-Godínez, Araceli Castañeda-Ovando, Aurea Itzel Morales-Estrada, Nancy Felix-Reyes, Luis Guillermo González-Olivares
Rev Argent Microbiol. 2020;52:305-14
Highlights

  • Lactic acid bacteria were isolated from an artisanal fruit fermented Mexican beverage.

  • Lactobacillus pentosus identified as resistant bacteria of some in vitro digestive treatments.

  • The microorganisms isolated can be potentially used as starters in fermented milk in order to produce a symbiotic beverage.

Open access
Microbiología agrícola, ambiental e industrial
Caracterización genética de bacterias endofíticas de arroz (Oryza sativa L.) con actividad antimicrobiana contra Burkholderia glumae
Renzo A. Valdez-Nuñez, Winston F. Ríos-Ruiz, Ernesto Ormeño-Orrillo, Edson E. Torres-Chávez, Jorge Torres-Delgado
Rev Argent Microbiol. 2020;52:315-27
Open access
Optimization of production of xylanases with low cellulases in Fusarium solani by means of a solid state fermentation using statistical experimental design
Mauro M. Martínez-Pacheco, Alberto Flores-García, Miguel A. Zamudio-Jaramillo, Ma. Carmen Chávez-Parga, Mariana Alvarez-Navarrete
Rev Argent Microbiol. 2020;52:328-38
Open access
Artículo especial
Toxigenic fungal species and natural occurrence of mycotoxins in crops harvested in Argentina
María Laura Chiotta, María Verónica Fumero, Eugenia Cendoya, Juan Manuel Palazzini, María Silvina Alaniz-Zanon, María Laura Ramirez, Sofía Noemí Chulze
Rev Argent Microbiol. 2020;52:339-47
Highlights

  • Fusarium, Aspergillus and Alternaria species are isolated in crops from Argentina.

  • Fumonisins are mainly detected in maize, wheat and by-products.

  • Trichotecenes occurrence is high in wheat, soybean and by-products.

  • Ochratoxin A and patulin are the main toxins detected in fruits and by-products.

  • Mycotoxin contamination in the food chain represent a toxicological risk for humans.

Open access
Imagen microbiológica
Diagnóstico de Cunninghamella bertholletiae Stadel
Peggy Vieille Oyarzo, Rodrigo Cruz Choappa
Rev Argent Microbiol. 2020;52:348-9
Open access
Carta al editor
Sporothrix brasiliensis: A growing hazard in the Northern area of Buenos Aires Province?
Alejandro Etchecopaz, Miguel Scarpa, Javier Mas, María L. Cuestas
Rev Argent Microbiol. 2020;52:350-1
Open access
es en pt

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