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Growth, tolerance, and enzyme activities of Trichoderma strains in culture media added with a pyrethroids-based insecticideCaliope Mendarte-Alquisira, Alejandro Alarcón, Ronald Ferrera-Cerrato
Rev Argent Microbiol. 2024;56:79-89
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Highlights
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Trichoderma spp. strains tolerate 200ppm of pyrethroids and carbamate insecticides.
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Trichoderma spp. consortium growth in liquid culture with 100ppm of insecticide.
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Insecticide promotes the release of proteins and peroxidases by Trichoderma spp.
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Insecticide decreases chitinase and endoglucanase produced by Trichoderma spp.
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Differential diagnosis of human Entamoeba infections: Morphological and molecular characterization of new isolates in ArgentinaAndrea Servián, María Lorena Zonta, Graciela T. Navone
Rev Argent Microbiol. 2024;56:16-24
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Highlights
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Entamoeba coli was the most prevalent species in Argentina populations studied.
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First molecular sequence of Entamoeba histolytica was recorded for Argentina.
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Among the Entamoeba complex species, Entamoeba dispar was more prevalent.
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Caracterización molecular de Escherichia coli diarreogénica proveniente de población pediátrica ambulatoria con diarrea, atendida en dos hospitales de Buenos Aires, ArgentinaNora Beatriz Molina, Sebastián Oderiz, Marisa Ana López, Juan Ángel Basualdo, Mónica Delfina Sparo
Rev Argent Microbiol. 2024;56:8-15
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Highlights
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E.coli diarreogénica fue detectada en el 14% (84/601) de los niños con diarrea.
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El patotipo EAEC fue prevalente y mostró un alto grado de diversidad genética.
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EAEC, ETEC, STEC, EPEC y EIEC fueron detectados en población menor de 5años.
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Detection of plasma anti-lipopolysaccharide (LPS) antibodies against enterohemorrhagic Escherichia coli (EHEC) in asymptomatic kindergarten teachers from Buenos Aires provinceRomina J. Fernandez-Brando, Flavia Sacerdoti, María M. Amaral, Alan M. Bernal, Marcelo Da Rocha, Marcela Belardo, Marina S. Palermo, Cristina A. Ibarra
Rev Argent Microbiol. 2024;56:25-32
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Highlights
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Fifty-one percent of teachers had circulating antibodies against O157, O145, O121 and O103 LPS.
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Anti-O157 antibodies were the most abundant found in 43% of the samples.
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Twenty-one of the samples reacted against more than one LPS serotype.
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Twenty percent showed IgM antibodies against at least one LPS serotype.
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Continuous educational programs could help to reduce cases of HUS.
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Distribution, seroprevalence and risk factors for bovine brucellosis in Brazil: Official data, systematic review and meta-analysisIsis Daniele dos Santos Rocha, Inácio José Clementino, Débora Luise Canuto de Sousa, Clebert José Alves, Carolina de Sousa Américo Batista Santos, Sérgio Santos de Azevedo
Rev Argent Microbiol. 2024;56:153-64
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Highlights
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Pooled seroprevalence of bovine brucellosis in Brazil was 2% (95% CI: 1%, 3%).
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Total sample size (number of animals evaluated) ranged from 109 to 686086.
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Purchase of animals for breeding was the most frequent risk factor.
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It is suggested broad surveys with updated seroprevalence data and risk factors.
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Prevalence of Demodex spp. in patients with chronic blepharitisViviana Flores, Marina Ruf, Silvia Paola Abad Farfan, Andrea Vanessa Suárez Echávez, Dolores Pilar Bastard, Maria Celeste Puga, Luis Daniel Mazzuoccolo
Rev Argent Microbiol. 2024;56:74-8
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Highlights
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High prevalence of Demodex spp. blepharitis in patients older than 60 years old.
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Meibomitis, dandruff, itching, epiphora were associated with blepharitis by Demodex spp.
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Diagnosis of blepharitis by Demodex spp. allows for an adequate treatment.
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Bartonella spp. in different species of bats from Misiones (Argentina)María N. De Salvo, Andrés Palmerio, Isabel La Rosa, Alejandro Rodriguez, Fernando J. Beltrán, Federico E. Gury Dohmen, Gabriel L. Cicuttin
Rev Argent Microbiol. 2024;56:227-31
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Highlights
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We studied 33 blood samples from bats from Misiones (Argentina).
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Bartonella spp. were found on Artibeus lituratus, Desmodus rotundus, Carollia perspicillata, and Myotis nigricans.
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Phylogenetic analysis shows seven genotypes of Bartonella.
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Asociación del consumo de drogas ilícitas en mujeres embarazadas y sífilis congénita en un Hospital Público de MéxicoLucía Miramontes-Buiza, Juan Carlos Lona-Reyes, Rene Oswaldo Pérez-Ramírez, Diego Magallón-Picazo, Araceli Cordero-Zamora, Larissa María Gómez-Ruiz, Tania Alejandra Cruz-Chávez
Rev Argent Microbiol. 2024;56:69-73
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Highlights
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La incidencia de sífilis congénita fue 10,5 eventos/1000 RN en un Hospital de México.
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El consumo de drogas ilícitas en la madre se asoció a sífilis congénita.
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Las drogas ilícitas de mayor uso fueron las metanfetaminas, marihuana y cocaína.
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The microPIXE technique to understand the distribution of heavy metals in arbuscular mycorrhizal symbiosisM. Statello, R.P. Colombo, E.M. de la Fournière, M.E. Debray, A.M. Godeas, V.A. Silvani
Rev Argent Microbiol. 2024;56:198-9
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Norovirus outbreaks in a nursery school in Buenos Aires, ArgentinaKarina A. Gomes, Juan I. Degiuseppe, Juan A. Stupka
Rev Argent Microbiol. 2024;56:373-9
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Highlights
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Norovirus is the leading cause of acute gastroenteritis outbreaks.
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Norovirus GI.3 [P13] is reported for the first time in Argentina.
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The Sydney variant of Norovirus GII.4 [P16] circulates in Argentina, and it is associated with severe dehydration.
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