This report presented the case of a 55-year-old patient who was admitted to the intensive care unit following a ruptured bronchial arteriovenous malformation (AVM). The patient, with no significant medical history, experienced massive hemoptysis leading to cardiac arrest. After successful resuscitation and embolization of the AVM, the patient developed fever and acute respiratory distress syndrome, requiring deep sedation, muscle paralysis, and prone positioning. Blood culture sampled on the day of admission tested positive for Lancefieldella parvula on day 4. The patient received targeted antimicrobial therapy, resulting in a favorable hemodynamic and respiratory outcome. No source of the bacteremia was found. We reported the general management of this rare cause of bacteremia and provided a review of the existing literature.
{"title":"Clinical management of Lancefieldella parvula bacteremia: A case study and review of the literature","authors":"Cynthia Wenglinski , Delphine Martiny , Michael Watchi , Fabio Silvio Taccone , Charles-Hervé Vacheron","doi":"10.1016/j.ram.2025.06.004","DOIUrl":"10.1016/j.ram.2025.06.004","url":null,"abstract":"<div><div>This report presented the case of a 55-year-old patient who was admitted to the intensive care unit following a ruptured bronchial arteriovenous malformation (AVM). The patient, with no significant medical history, experienced massive hemoptysis leading to cardiac arrest. After successful resuscitation and embolization of the AVM, the patient developed fever and acute respiratory distress syndrome, requiring deep sedation, muscle paralysis, and prone positioning. Blood culture sampled on the day of admission tested positive for <em>Lancefieldella parvula</em> on day 4. The patient received targeted antimicrobial therapy, resulting in a favorable hemodynamic and respiratory outcome. No source of the bacteremia was found. We reported the general management of this rare cause of bacteremia and provided a review of the existing literature.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 57-59"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-11DOI: 10.1016/j.ram.2025.09.004
Hu Ding , Xinyang Li , Shumin Wang , Yang Yang , Xue Chen , Changbao Chen , Huan Wang
This paper systematically reviews the taxonomic characteristics, pest control mechanisms, and field application cases of Trichoderma harzianum. As a non-toxic and environmentally friendly biocontrol fungus, T. harzianum exerts its pest control effects through various modes of action, including direct actions (such as parasitism, the production of insecticidal metabolites, and the release of antifeedant and repellent compounds) and indirect actions (such as inducing plants to enhance their resistance, attracting natural enemies of pests, and affecting insect symbiotic fungi). It can effectively control various agricultural pests, including nematodes and aphids. Moreover, the paper focuses on analyzing how modern formulation technologies (e.g., microencapsulation), synergistic strategies (in combination with biological and/or chemical agents), and genetic engineering enhance its biocontrol efficiency. This study aims to provide a theoretical basis and technical reference for constructing a sustainable pest management system based on T. harzianum, addressing pest control challenges within the context of increasing global food demand and supporting sustainable agricultural development.
{"title":"Trichoderma harzianum for the control of agricultural pests: Potential, progress, applications and future prospects","authors":"Hu Ding , Xinyang Li , Shumin Wang , Yang Yang , Xue Chen , Changbao Chen , Huan Wang","doi":"10.1016/j.ram.2025.09.004","DOIUrl":"10.1016/j.ram.2025.09.004","url":null,"abstract":"<div><div>This paper systematically reviews the taxonomic characteristics, pest control mechanisms, and field application cases of <em>Trichoderma harzianum</em>. As a non-toxic and environmentally friendly biocontrol fungus, <em>T. harzianum</em> exerts its pest control effects through various modes of action, including direct actions (such as parasitism, the production of insecticidal metabolites, and the release of antifeedant and repellent compounds) and indirect actions (such as inducing plants to enhance their resistance, attracting natural enemies of pests, and affecting insect symbiotic fungi). It can effectively control various agricultural pests, including nematodes and aphids. Moreover, the paper focuses on analyzing how modern formulation technologies (e.g., microencapsulation), synergistic strategies (in combination with biological and/or chemical agents), and genetic engineering enhance its biocontrol efficiency. This study aims to provide a theoretical basis and technical reference for constructing a sustainable pest management system based on <em>T. harzianum</em>, addressing pest control challenges within the context of increasing global food demand and supporting sustainable agricultural development.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 101-118"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145281063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-11DOI: 10.1016/j.ram.2025.09.003
Karen A. Terrazas-Pineda , Fabián-Ricardo Gómez-De-Anda , Liliana Alamilla-Beltrán , Nydia E. Reyes-Rodríguez , Víctor Johan Acosta-Pérez , Vicente Vega-Sánchez
Tilapia production is considered an alternative to increasing the income of the rural population, and in recent years has surpassed traditional agricultural and livestock activities, playing a fundamental role in food production at the national and global level. The State of Hidalgo has significant aquaculture production; however, there are no previous records related to the microorganisms present. Therefore, this study aimed to identify bacteria that cause foodborne diseases or are associated with human diseases, present in Tilapia in the State of Hidalgo. Sixty-nine isolates were obtained from a collection recovered from a sampling previously conducted in different municipalities of Hidalgo and from different Tilapia organs. Once the isolates were activated, DNA extraction was obtained and molecular identification was performed using the rpoD or 16S rRNA genes, and later sequenced by the Sanger method. Twelve genera and 19 species were identified: Aeromonas (40.6%), Shewanella (14.5%), Acinetobacter (8.7%), Citrobacter, Comamonas, Plesiomonas, Pseudomonas, and Vibrio (5.8%), Kosakonia (2.9%) and Exiguobacterium, Glutamicibacter and Pantoea (1.4%). In this study, various isolates of health importance were identified, because 66.7% of the bacteria found have been associated with foodborne diseases, which can mainly affect immunosuppressed or immunocompetent individuals. This study reveals the presence of pathogens in a highly consumed product; therefore, it is necessary to implement strategies to reduce the presence of these pathogens of public health importance.
{"title":"Molecular identification of bacteria isolated from Tilapia (Oreochromis spp.) from the State of Hidalgo, Mexico. A potential source of foodborne diseases","authors":"Karen A. Terrazas-Pineda , Fabián-Ricardo Gómez-De-Anda , Liliana Alamilla-Beltrán , Nydia E. Reyes-Rodríguez , Víctor Johan Acosta-Pérez , Vicente Vega-Sánchez","doi":"10.1016/j.ram.2025.09.003","DOIUrl":"10.1016/j.ram.2025.09.003","url":null,"abstract":"<div><div>Tilapia production is considered an alternative to increasing the income of the rural population, and in recent years has surpassed traditional agricultural and livestock activities, playing a fundamental role in food production at the national and global level. The State of Hidalgo has significant aquaculture production; however, there are no previous records related to the microorganisms present. Therefore, this study aimed to identify bacteria that cause foodborne diseases or are associated with human diseases, present in Tilapia in the State of Hidalgo. Sixty-nine isolates were obtained from a collection recovered from a sampling previously conducted in different municipalities of Hidalgo and from different Tilapia organs. Once the isolates were activated, DNA extraction was obtained and molecular identification was performed using the <em>rpoD</em> or <em>16S</em> rRNA genes, and later sequenced by the Sanger method. Twelve genera and 19 species were identified: <em>Aeromonas</em> (40.6%), <em>Shewanella</em> (14.5%), <em>Acinetobacter</em> (8.7%), <em>Citrobacter</em>, <em>Comamonas</em>, <em>Plesiomonas</em>, <em>Pseudomonas</em>, and <em>Vibrio</em> (5.8%), <em>Kosakonia</em> (2.9%) and <em>Exiguobacterium</em>, <em>Glutamicibacter</em> and <em>Pantoea</em> (1.4%). In this study, various isolates of health importance were identified, because 66.7% of the bacteria found have been associated with foodborne diseases, which can mainly affect immunosuppressed or immunocompetent individuals. This study reveals the presence of pathogens in a highly consumed product; therefore, it is necessary to implement strategies to reduce the presence of these pathogens of public health importance.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 125-132"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145281046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-10-06DOI: 10.1016/j.ram.2025.08.001
Melisa G. Fossaroli, Mariana Biscia, Melisa V. Spadaro, Lilian M. Anthony, Paula S. Tugores, Javier E. Sarradell
Aujeszky's disease virus infects pigs and causes latency in the absence of clinical signs, making its diagnosis very difficult. Due to the huge economic losses related to this disease, the Argentinian government has created and implemented a control and eradication plan to manage it. As part of the monitoring plan to assess the progress of the control and eradication plan for a positive status farm, oral fluid samples were obtained from animals at 40, 70, 90,120 and 130-160 days of age, after one year of vaccination with a deleted and inactivated vaccine. These samples were processed using an antigen-PCR technique and positive results were obtained from 130-160 day-old animals. Recovering DNA from Aujeszky's disease virus in oral fluids from field samples could enable the use of this technique for epidemiological surveillance in Aujeszkýs control and eradication programs.
{"title":"Monitoreo en granja del virus de la enfermedad de Aujeszky mediante PCR aplicada a fluidos orales de porcinos","authors":"Melisa G. Fossaroli, Mariana Biscia, Melisa V. Spadaro, Lilian M. Anthony, Paula S. Tugores, Javier E. Sarradell","doi":"10.1016/j.ram.2025.08.001","DOIUrl":"10.1016/j.ram.2025.08.001","url":null,"abstract":"<div><div>Aujeszky's disease virus infects pigs and causes latency in the absence of clinical signs, making its diagnosis very difficult. Due to the huge economic losses related to this disease, the Argentinian government has created and implemented a control and eradication plan to manage it. As part of the monitoring plan to assess the progress of the control and eradication plan for a positive status farm, oral fluid samples were obtained from animals at 40, 70, 90,120 and 130-160<!--> <!-->days of age, after one year of vaccination with a deleted and inactivated vaccine. These samples were processed using an antigen-PCR technique and positive results were obtained from 130-160<!--> <!-->day-old animals. Recovering DNA from Aujeszky's disease virus in oral fluids from field samples could enable the use of this technique for epidemiological surveillance in Aujeszkýs control and eradication programs.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 18-22"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145244990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-11-17DOI: 10.1016/j.ram.2025.10.002
María A. Correa Deza , Stefanía G. Venegas Tarancón , Gustavo Martínez Zamora , Josefina A. Amigo , Sergio M. Salazar , María P. Filippone , Raúl O. Pedraza
Among the pathogenic fungi of strawberry (Fragaria ananassa Duch.), Botrytis cinerea, a filamentous necrotrophic fungus that causes gray mold, stands out worldwide for its ubiquity and prevalence. Chemical control has been the most effective method used for years to manage B. cinerea in strawberry crops. However, the frequent use of numerous fungicides has increased issues related to pathogen resistance, resurgence, and toxic residues. In this study, we propose the use of the plant growth-promoting bacterium Azospirillum argentinense REC3 and its flagellin AzFlap, whether non-glycosylated or glycosylated, for the control of B. cinerea. We observed that only REC3 inhibited the mycelial growth of B. cinereain vitro, whereas AzFlap had no inhibitory effect. Moreover, REC3 and only its glycosylated flagellin AzFlap contributed to reducing lesions caused by B. cinerea on detached strawberry leaves.
{"title":"Azospirillum argentinense REC3 and its glycosylated flagellin AzFlap reduce lesions caused by Botrytis cinerea on strawberry leaves","authors":"María A. Correa Deza , Stefanía G. Venegas Tarancón , Gustavo Martínez Zamora , Josefina A. Amigo , Sergio M. Salazar , María P. Filippone , Raúl O. Pedraza","doi":"10.1016/j.ram.2025.10.002","DOIUrl":"10.1016/j.ram.2025.10.002","url":null,"abstract":"<div><div>Among the pathogenic fungi of strawberry (<em>Fragaria ananassa</em> Duch.), <em>Botrytis cinerea</em>, a filamentous necrotrophic fungus that causes gray mold, stands out worldwide for its ubiquity and prevalence. Chemical control has been the most effective method used for years to manage <em>B. cinerea</em> in strawberry crops. However, the frequent use of numerous fungicides has increased issues related to pathogen resistance, resurgence, and toxic residues. In this study, we propose the use of the plant growth-promoting bacterium <em>Azospirillum argentinense</em> REC3 and its flagellin AzFlap, whether non-glycosylated or glycosylated, for the control of <em>B. cinerea</em>. We observed that only REC3 inhibited the mycelial growth of <em>B. cinerea</em> <em>in vitro</em>, whereas AzFlap had no inhibitory effect. Moreover, REC3 and only its glycosylated flagellin AzFlap contributed to reducing lesions caused by <em>B. cinerea</em> on detached strawberry leaves.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 119-124"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145550429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-11-27DOI: 10.1016/j.ram.2025.09.008
Claudia Patricia Cañadas-Aragón , José Millán Oñate-Gutierrez
Neutropenia has been recognized for many decades as the most important determinant of infection risk in cancer patients. The aim of this study is to describe the clinical and demographic characteristics, type of microbiological isolates, and resistance to antimicrobials of patients with hemato-oncological neoplasms who experienced febrile neutropenia as a complication in a third-level clinic in the city of Cali. A single-center retrospective descriptive study was conducted. Data were retrieved from the medical records of cancer patients who developed post-chemotherapy febrile neutropenia between January 2014 and December 2021. Ninety-six patients were included in the study. An infectious focus was documented in 41% of the cases, with more than one microbiological isolate identified in 2.5%. Gram-negative bacilli predominated, and were isolated in 84.6% of cases. Regarding resistance mechanisms determined phenotypically in E. coli and Klebsiella pneumoniae, ESBL resistance was found in 28.6% and 30% of cases, respectively, and KPC-type carbapenemases in 2.6% of the isolates. Infection-associated mortality was 9.3%. The infectious focus is likely to go undocumented In patients with febrile neutropenia, and infection-associated mortality is low.
{"title":"Infecciones en pacientes con neutropenia febril en un centro de atención integral de tercer nivel en Cali, Colombia","authors":"Claudia Patricia Cañadas-Aragón , José Millán Oñate-Gutierrez","doi":"10.1016/j.ram.2025.09.008","DOIUrl":"10.1016/j.ram.2025.09.008","url":null,"abstract":"<div><div>Neutropenia has been recognized for many decades as the most important determinant of infection risk in cancer patients. The aim of this study is to describe the clinical and demographic characteristics, type of microbiological isolates, and resistance to antimicrobials of patients with hemato-oncological neoplasms who experienced febrile neutropenia as a complication in a third-level clinic in the city of Cali. A single-center retrospective descriptive study was conducted. Data were retrieved from the medical records of cancer patients who developed post-chemotherapy febrile neutropenia between January 2014 and December 2021. Ninety-six patients were included in the study. An infectious focus was documented in 41% of the cases, with more than one microbiological isolate identified in 2.5%. Gram-negative bacilli predominated, and were isolated in 84.6% of cases. Regarding resistance mechanisms determined phenotypically in <em>E. coli</em> and <em>Klebsiella pneumoniae</em>, ESBL resistance was found in 28.6% and 30% of cases, respectively, and KPC-type carbapenemases in 2.6% of the isolates. Infection-associated mortality was 9.3%. The infectious focus is likely to go undocumented In patients with febrile neutropenia, and infection-associated mortality is low.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 74-79"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145638158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-09-08DOI: 10.1016/j.ram.2025.07.003
Carla Alvarez , Juliana Bello , Carlos Vay , Ángela Famiglietti , Marcela Nastro , Hernán Rodríguez
Thirty consecutive multidrug-resistant non-carbapenemase-producing Pseudomonas aeruginosa clinical isolates from patients admitted at a university hospital were studied. Resistance rates to ceftazidime/avibactam, aztreonam/avibactam, ceftolozane/tazobactam and imipenem/relebactam were 40%, 88%, 3%, and 20%, respectively. Ceftazidime/avibactam reverted ceftazidime resistance in 25% of the isolates, whereas imipenem/relebactam did so in 77% of the imipenem-resistant isolates. The analysis of the resistance patterns observed suggests a high contribution of non-enzymatic mechanisms such as efflux pumps and porin alterations.
{"title":"Antimicrobial resistance profiles in multidrug-resistant Pseudomonas aeruginosa isolates in a university hospital in Argentina. Activity of new antibiotic combinations","authors":"Carla Alvarez , Juliana Bello , Carlos Vay , Ángela Famiglietti , Marcela Nastro , Hernán Rodríguez","doi":"10.1016/j.ram.2025.07.003","DOIUrl":"10.1016/j.ram.2025.07.003","url":null,"abstract":"<div><div>Thirty consecutive multidrug-resistant non-carbapenemase-producing <em>Pseudomonas aeruginosa</em> clinical isolates from patients admitted at a university hospital were studied. Resistance rates to ceftazidime/avibactam, aztreonam/avibactam, ceftolozane/tazobactam and imipenem/relebactam were 40%, 88%, 3%, and 20%, respectively. Ceftazidime/avibactam reverted ceftazidime resistance in 25% of the isolates, whereas imipenem/relebactam did so in 77% of the imipenem-resistant isolates. The analysis of the resistance patterns observed suggests a high contribution of non-enzymatic mechanisms such as efflux pumps and porin alterations.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 36-39"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145030539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2025-11-27DOI: 10.1016/j.ram.2025.10.005
Michelle Wendorff, Micaela Rey, Carla Cerrina, Walter Medina, Sol Ingolotti, Patricia Bechi, Liliana Maggi, Leticia Sollosqui
Globalization and the introduction of exotic pets have led to the identification of new species that produce tinea in humans. Here, we report the clinical case of a 22-year-old female, who presented with a lesion on her hand that was compatible with dermatophytosis. Molecular biology methods identified the cultured fungus as Trichophyton erinacei.
{"title":"Tinea manuum caused by Trichophyton erinacei: A case report in Argentina","authors":"Michelle Wendorff, Micaela Rey, Carla Cerrina, Walter Medina, Sol Ingolotti, Patricia Bechi, Liliana Maggi, Leticia Sollosqui","doi":"10.1016/j.ram.2025.10.005","DOIUrl":"10.1016/j.ram.2025.10.005","url":null,"abstract":"<div><div>Globalization and the introduction of exotic pets have led to the identification of new species that produce tinea in humans. Here, we report the clinical case of a 22-year-old female, who presented with a lesion on her hand that was compatible with dermatophytosis. Molecular biology methods identified the cultured fungus as <em>Trichophyton erinacei</em>.</div></div>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 80-82"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145638182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-01Epub Date: 2026-02-24DOI: 10.1016/j.ram.2026.01.001
Guillermo Garcia-Effron
{"title":"Fluconazole-resistant Candida parapsilosis: a global threat with increasing relevance in Argentina","authors":"Guillermo Garcia-Effron","doi":"10.1016/j.ram.2026.01.001","DOIUrl":"10.1016/j.ram.2026.01.001","url":null,"abstract":"","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":"58 1","pages":"Pages 1-2"},"PeriodicalIF":2.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147309606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-23DOI: 10.1016/j.ram.2025.11.004
Juan Facundo Gómez Cherey, Sandra Noemí Payalef, Xin Chen, Ana Paula Reyes, Verónica Andrea Maldonado, Mirta Olga Losada, Youxiang Wang, Beatriz Elizabeth Perazzi
Human papillomavirus infection is the most common sexually-transmitted infection and its relationship with vaginal microbiota is not entirely clear. The aims of this study were: (1) to determine the prevalence of infection with high-risk (hr)-HPV types in different age groups; (2) to describe the hr-HPV types according to the grade of cervical squamous intraepithelial lesion (SIL); (3) to establish the prevalence of bacterial vaginosis (BV), yeasts and trichomoniasis in the different age groups studied according to the type of hr-HPV detected. A total of 741 patients underwent clinical examination and collection of vaginal fornix to study basic vaginal states (BVS) and culture. hr-HPV types were determined using multiple isothermal real-time amplification. Patients were divided into three age groups: Group 1, 18-24 years (n=138), Group 2, 25-50 years (n=456) and Group 3, over 50 years (n=147). All groups were further divided into HPV-negative, HPV-positive patients without lesion, low-grade squamous intraepithelial lesion (L-SIL), high-grade squamous intraepithelial lesion/squamous cervical carcinoma (H-SIL/SCC). HPV16 type was the most prevalent in H-SIL/SSC 50% (22/44) followed by hr-HPV non-16/18 13.6% (6/44) and in L-SIL 27% (17/63) followed by HPV31-33 14.3% (9/63). In Group 1, HPV16 was detected in 63.3% (7/11) of H-SIL/SCC lesions; in Group 2, HPV16 was detected in 45.5% of H-SIL/SCC lesions (14/32); and in Group 3, HPV16 was detected in one case of H-SIL/SCC. The most prevalent condition was BV in the three groups. In Group 1, 54.2% of HPV16 patients had associated BV. A high prevalence of hr-HPV infection was detected in the 18-24-year age group. HPV16 was the most prevalent type in both the 18-24 and 25-50-year age groups and both HSIL/SSC and L-SIL. BV was the condition most frequently detected, especially in the 18-24-year age group.
{"title":"Prevalence of hr-HPV types and their association with bacterial vaginosis, yeasts and trichomoniasis in Argentine women.","authors":"Juan Facundo Gómez Cherey, Sandra Noemí Payalef, Xin Chen, Ana Paula Reyes, Verónica Andrea Maldonado, Mirta Olga Losada, Youxiang Wang, Beatriz Elizabeth Perazzi","doi":"10.1016/j.ram.2025.11.004","DOIUrl":"https://doi.org/10.1016/j.ram.2025.11.004","url":null,"abstract":"<p><p>Human papillomavirus infection is the most common sexually-transmitted infection and its relationship with vaginal microbiota is not entirely clear. The aims of this study were: (1) to determine the prevalence of infection with high-risk (hr)-HPV types in different age groups; (2) to describe the hr-HPV types according to the grade of cervical squamous intraepithelial lesion (SIL); (3) to establish the prevalence of bacterial vaginosis (BV), yeasts and trichomoniasis in the different age groups studied according to the type of hr-HPV detected. A total of 741 patients underwent clinical examination and collection of vaginal fornix to study basic vaginal states (BVS) and culture. hr-HPV types were determined using multiple isothermal real-time amplification. Patients were divided into three age groups: Group 1, 18-24 years (n=138), Group 2, 25-50 years (n=456) and Group 3, over 50 years (n=147). All groups were further divided into HPV-negative, HPV-positive patients without lesion, low-grade squamous intraepithelial lesion (L-SIL), high-grade squamous intraepithelial lesion/squamous cervical carcinoma (H-SIL/SCC). HPV16 type was the most prevalent in H-SIL/SSC 50% (22/44) followed by hr-HPV non-16/18 13.6% (6/44) and in L-SIL 27% (17/63) followed by HPV31-33 14.3% (9/63). In Group 1, HPV16 was detected in 63.3% (7/11) of H-SIL/SCC lesions; in Group 2, HPV16 was detected in 45.5% of H-SIL/SCC lesions (14/32); and in Group 3, HPV16 was detected in one case of H-SIL/SCC. The most prevalent condition was BV in the three groups. In Group 1, 54.2% of HPV16 patients had associated BV. A high prevalence of hr-HPV infection was detected in the 18-24-year age group. HPV16 was the most prevalent type in both the 18-24 and 25-50-year age groups and both HSIL/SSC and L-SIL. BV was the condition most frequently detected, especially in the 18-24-year age group.</p>","PeriodicalId":21163,"journal":{"name":"Revista Argentina de microbiologia","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145828245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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