metricas
covid
Buscar en
Revista Argentina de Microbiología
Toda la web
Inicio Revista Argentina de Microbiología
Información de la revista
Número
Vol. 54. Núm. 4.
Páginas 261-344 (octubre - diciembre 2022)
Editorial
Un patógeno fúngico emergente multirresistente en Argentina
Norma B. Fernandez
Rev Argent Microbiol. 2022;54:261-2
Open access
Microbiología básica
Rapid identification of new isolates of Acidipropionibacterium acidipropionici by fluorescence in situ hybridization (FISH)
Jaime Daniel Babot, Eloy Argañaraz-Martínez, María Cristina Apella, Adriana Perez Chaia
Rev Argent Microbiol. 2022;54:263-7
Highlights

  • Two out of eight isolates obtained from cattle milk and feces showed characteristics of propionibacteria.

  • Probe Pap446 identified two isolates as Acidipropionibacterium acidipropionici.

  • The identity of these isolates was confirmed by molecular techniques.

Open access
Human hookworms from Argentina: Differential diagnosis of Necator americanus and Ancylostoma duodenale in endemic populations from Buenos Aires and Misiones
Andrea Servián, Silvia A. Repetto, María Lorena Zonta, Graciela T. Navone
Rev Argent Microbiol. 2022;54:268-81
Highlights

  • Microscopic and PCR methods may be used as complementary tools to diagnose hookworms.

  • All hookworm infections in this study were caused by Necator americanus.

  • This is the first study to provide molecular data on Necator americanus in Argentina.

  • Imported hookworm infections found here highlight the importance of their assessment in non-endemic areas.

Acceso a texto completo
First evidence of systemic infection and specific cytotoxic T lymphocyte immune response evoked by oral infection with recombinant Salmonella enterica serovar Albany-Ovalbumin in C57BL/6 mice
Carolina Murúa-López, Priscilla González, Stephanie Almeida-Luna, Adriana Garibay-Escobar, Maribel Aguilar-Medina, Evangelina Beltrán-López, Héctor Samuel López-Moreno
Rev Argent Microbiol. 2022;54:282-7
Open access
Emergence and clonal expansion of Klebsiella pneumoniae ST307, simultaneously producing KPC-3 and NDM-1
Daniela Cejas, Francisco Magariños, Alan Elena, Micaela Ferrara, Cecilia Ormazábal, María Valeria Yernazian, Gabriel Gutkind, Marcela Radice
Rev Argent Microbiol. 2022;54:288-92
Highlights

  • Klebsiella pneumoniae ST307 resistant to carbapenems and ceftazidime/avibactam.

  • KPC-3 and NDM-1 producing Klebsiella pneumoniae isolates are clonally related.

  • blaNDM-1 is located in a conjugative IncA/C plasmid.

  • Genetic context of blaNDM-1 presented ISKpn14 and bleMBL.

  • blaKPC was located in Tn4401a.

Open access
Agentes antimicrobianos
Phenotypic and genotypic characterization of oxacillin-susceptible and mecA positive Staphylococcus aureus strains isolated in Uruguay
Lorena Pardo, Guillermina Giudice, María Inés Mota, Claudia Gutiérrez, Adriana Varela, Gabriela Algorta, Verónica Seija, Antonio Galiana, ... Gustavo Varela
Rev Argent Microbiol. 2022;54:293-8
Highlights

  • This study shows the spread of pathogenic strains of S. aureus misidentified as MSSA.

  • The majority carried SCCmec type V and were located within the same pulsogroup.

  • The cefoxitin disk and PBP 2a detection identified to most isolates such as MRSA.

Open access
Microbiología clínica y enfermedades infecciosas
Mycoplasma bovis-pneumonia and polyarthritis in feedlot calves in Argentina: First local isolation
Germán Cantón, Ignacio Llada, Carlos Margineda, Facundo Urtizbiría, Sofía Fanti, Valeria Scioli, María Andrea Fiorentino, Enrique Louge Uriarte, ... Pablo Tamiozzo
Rev Argent Microbiol. 2022;54:299-304
Highlights

  • Mycoplasma bovis is frequently detected in bovine respiratory disease.

  • First local isolation of M. bovis from feedlot calves with pneumonia and polyarthritis in Argentina.

  • Practitioners should be alerted by the presence of mycoplasma infections causing BRD in the region.

  • Surveillance is a priority to reduce the source of disease to naïve animals.

Acceso a texto completo
Empiema necessitatis por Campylobacter rectus. Identificación rápida por MALDI-TOF MS
Claudia Barberis, María Florencia Veiga, Daniela Tolosa, Carlos Vay, Pablo Schuarzberg
Rev Argent Microbiol. 2022;54:305-8
Highlights

  • Puntos destacados

  • Reporte de un caso de empiema necessitatis por Campylobacter rectus.

  • Identificación rápida de Campylobacter rectus por espectrometría de masas.

Open access
Saliva screening of health care workers for SARS-CoV-2 detection
Marcela Echavarria, Noelia S. Reyes, Pamela E. Rodriguez, Carmen Ricarte, Martin Ypas, Alejandro Seoane, Marcia Querci, Marianela Brizio, ... Guadalupe Carballal
Rev Argent Microbiol. 2022;54:309-13
Highlights

  • Saliva screening was helpful for identifying SARS-CoV-2 infection in HCWs.

  • Six percent of asymptomatic/pre-symptomatic HCWs from high/middle area, were positive in saliva.

  • Five out of six HCWs were positive in a subsequent nasopharyngeal swab.

  • Four out of six HCWs developed signs and symptoms compatible with COVID-19.

  • Three out of 4 symptomatic seroconverted while asymptomatic HCWs remained seronegative.

Open access
Descripción de un caso de sepsis abdominal por Desulfovibrio desulfuricans
Marianela Machaca, María Luz Bodean, Sabrina Montaña, Susana D. García, Daniel Stecher, Carlos A. Vay, Marisa N. Almuzara
Rev Argent Microbiol. 2022;54:314-7
Highlights

  • La identificación de Desulfovibrio spp. por pruebas bioquímicas no es dificultosa.

  • La morfología celular, la movilidad y la producción de SH2 y de desulfoviridina lo caracterizan.

  • La espectrometría de masas es un método fiable para su identificación.

  • Desulfovibrio spp. podría estar subdiagnosticado por su lento crecimiento.

Open access
Scedosporium aurantiacum: First isolation in Argentina from a previously healthy patient after traumatic inoculation
Susana Carnovale, Carolina Epelbaum, Ruben Abrantes, Susana Córdoba, Carla Cabrera, Beatriz Caracciolo
Rev Argent Microbiol. 2022;54:318-21
Highlights

  • First case of S. aurantiacum in our country from a pediatric patient.

  • Improved methods are necessary for the identification of species of this genus.

  • Voriconazole proved to be most effective antifungal in the treatment and led to a favorable clinical outcome.

Open access
Microbiología de alimentos
Molecular subtyping of Salmonella spp. strains in provincial abattoirs with no hazard analysis critical control point from Buenos Aires, Argentina
Magdalena Costa, Victoria Brusa, Alejandra Londero, Lucía Galli, Gerardo A. Leotta
Rev Argent Microbiol. 2022;54:322-5
Highlights

  • Salmonella enterica was established in products and the environment.

  • Cross-contamination in abattoirs was confirmed.

  • The application of HACCP is necessary to meet the zero-tolerance criteria for Salmonella on beef.

Open access
Microbiología agrícola, ambiental e industrial
Antagonist activities and phylogenetic relationships of actinomycetes isolated from an Artemisia habitat
Ana Cecilia Gonzalez-Franco, Loreto Robles-Hernández
Rev Argent Microbiol. 2022;54:326-34
Highlights

  • Rhizosphere soil of sagebrush is a source of novel strong antifungal actinomycetes.

  • Strong antifungal Streptomyces can be exploited for agriculture and medicine.

  • A clade of antifungal Streptomyces is revealed by analyzing the16S rDNA sequences.

Open access
Artículo especial
Beta-lactam antibiotics and viridans group streptococci
Horacio A. Lopardo, Laura Vigliarolo, Laura Bonofiglio, Paula Gagetti, Gabriela García Gabarrot, Sara Kaufman, Marta Mollerach, Inés Toresani, Martha von Specht
Rev Argent Microbiol. 2022;54:335-43
Highlights

  • In Argentina one to two thirds of viridans group streptococci are nonsusceptible to penicillin.

  • Species of the Streptococcus mitis group are more frequently nonsusceptible to penicillin.

  • Third generation cephalosporins and carbapenems are currently more active.

  • Mortality was associated to nonsusceptibility to penicillin.

Open access
es en pt

¿Es usted profesional sanitario apto para prescribir o dispensar medicamentos?

Are you a health professional able to prescribe or dispense drugs?

Você é um profissional de saúde habilitado a prescrever ou dispensar medicamentos