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Introduction. Leclercia adecarboxylata is a member of Enterobacterales, often considered an opportunistic pathogen. Recent reports have highlighted L. adecarboxylata as an emerging pathogen harbouring virulence and resistance determinants.Gap statement. Little information exists on virulence and resistance determinants in L. adecarboxylata strains isolated from environmental, food, and clinical samples.Aim. To determine the presence of resistance and virulence determinants and plasmid features in L. adecarboxylata strains isolated from environmental, food, and clinical samples, as well as their phylogenetic relationship.Results. All strains tested showed resistance to ß-lactams and quinolones but were sensitive to aminoglycosides and nitrofurans. However, even though fosfomycin resistance is considered a characteristic trait of L. adecarboxylata, the resistance phenotype was only observed in 50â% of the strains; bla TEM was the most prevalent BLEE gene (70â%), while the quinolone qnrB gene was observed in 60â% of the strains. Virulence genes were differentially observed in the strains, with adhesion-related genes being the most abundant, followed by toxin genes. Finally, all strains carried one to seven plasmid bands ranging from 7 to 125 kbps and harboured several plasmid addiction systems, such as ParDE, VagCD, and CcdAB in 80â% of the strains.Conclusions. L. adecarboxylata is an important emerging pathogen that may harbour resistance and virulence genes. Additionally, it has mobilizable genetic elements that may contribute to the dissemination of genetic determinants to other bacterial genera.
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Antibacterianos , Enterobacteriaceae , Testes de Sensibilidade Microbiana , Filogenia , Plasmídeos , Fatores de Virulência , Antibacterianos/farmacologia , Plasmídeos/genética , Virulência/genética , Enterobacteriaceae/genética , Enterobacteriaceae/efeitos dos fármacos , Enterobacteriaceae/patogenicidade , Enterobacteriaceae/isolamento & purificação , Enterobacteriaceae/classificação , Fatores de Virulência/genética , Humanos , Infecções por Enterobacteriaceae/microbiologia , Fenótipo , Farmacorresistência Bacteriana/genética , Quinolonas/farmacologia , beta-Lactamas/farmacologia , Farmacorresistência Bacteriana Múltipla/genética , Microbiologia de AlimentosRESUMO
Background: Describing the perception towards the online course on Primary Health Care (PHC) of the Institute of Health for Well-being (INSABI) will allow to establish improvement actions. Objective: Describe the factors that contribute to satisfaction with the PHC course offered online by INSABI. Material and methods: 620 records of the Health Education System for Well-being were studied. Satisfaction was determined using a Likert-type questionnaire with three dimensions: virtual environment, cognitive area, and measurement of learning. A deductive analysis of the open opinions was carried out. Results: 70% of the health personnel approved the course in less than a week, with an initial score of 5.41 ±1.9 points and final score of 7.8 ± 1.2. More than 65% had scores above the average in the three dimensions. Satisfaction with the virtual environment was 15.57 ± 3.4 points, and 15.73 ± 3.3 with the cognitive dimension. Age and gender were associated with dissatisfaction with the virtual environment and in the cognitive dimension, age was associated with dissatisfaction; 27.7% expressed negative comments, 28.5% related to course extension; 15.5% about the didactic techniques, 10.9% about the speakers and 10.4% about the final exam. Conclusions: The course generates significant learning, 62.4% of the students have a positive or neutral opinion. However, 27.8% expressed dissatisfaction, the majority related to the extension of the course.
Introducción: describir la percepción hacia el curso en línea de Atención Primaria de Salud (APS) del Instituto de Salud para el Bienestar (INSABI) permitirá establecer acciones de mejora. Objetivo: conocer el grado de satisfacción con el curso sobre APS que el INSABI ofrece en línea mediante un análisis mixto. Material y métodos: se estudiaron 620 registros del Sistema Educativo de Salud para el Bienestar. La satisfacción se determinó mediante un cuestionario tipo Likert con tres dimensiones: ambiente virtual, área cognitiva y medición del aprendizaje. Se realizó un análisis deductivo de las opiniones abiertas. Resultados: el 70% de los trabajadores de la salud aprobaron el curso en menos de una semana con una calificación inicial de 5.41 ± 1.9 puntos y la final de 7.8 ± 1.2. Más del 65% tuvieron puntuaciones por arriba de la media en las tres dimensiones. La satisfacción con el ambiente virtual fue de 15.57 ± 3.4 puntos, y de 15.73 ± 3.3 con la dimensión cognitiva. La edad y el sexo se asociaron a insatisfacción con el ambiente virtual y en la dimensión cognitiva, la edad se asoció con insatisfacción; el análisis cualitativo mostró que 27.7% expresaron comentarios negativos, 28.5% relacionadas con la extensión del curso; 15.5% sobre las técnicas didácticas, 10.9% acerca de los ponentes y 10.4% sobre el examen final. Conclusiones: el curso genera aprendizaje significativo, el 62.4% de los educandos tienen una opinión positiva o neutra. Sin embargo, 27.8% manifestaron insatisfacción, la mayoría relacionada con la extensión del curso.
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Pessoal de Saúde , Estudantes , Humanos , Inquéritos e Questionários , Satisfação Pessoal , Atenção Primária à SaúdeRESUMO
The Institute for Health for Well-being (INSABI according to its initials in Spanish), in collaboration with the National Institute of Medical Sciences and Nutrition Salvador Zubirán (INCMNSZ), instituted the Continuous Training on clinical management "Mexico against COVID-19" in 2020, with the purpose of training the frontline health personnel in the care for patients with COVID-19 in the context of hospital reconversion through the COVIDUTI platform. Virtual conferences were held for medical personnel from all over the country with the possibility of interacting with various specialists. In 2020, 215 sessions were held and 158 in 2021. That year educational content was expanded and included topics for other health categories, such as nursing and social work. In October 2021, it was established the Health Educational System for Well-being (SIESABI), with the aim of promoting continuous and permanent education for health workers. It currently offers face-to-face and virtual courses, permanent seminars, and telementoring, with the possibility of providing academic follow-up to its subscribers and linking priority courses that are on other platforms. The educational platform is an opportunity to unify the efforts of the health system in Mexico in the continuous and permanent education of professionals who care for people without social security and thereby contribute to the implementation of a model of care based on primary health care (PHC).
El Instituto de Salud para el Bienestar (INSABI), en colaboración con el Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), instituyó el entrenamiento continuo sobre manejo clínico "México contra COVID-19" en 2020, con el propósito de capacitar al personal de salud de primera línea en la atención de pacientes con COVID-19 en el contexto de la reconversión hospitalaria mediante la plataforma COVIDUTI. Se realizaron conferencias virtuales dirigidas a personal médico de todo el país con la posibilidad de interactuar con diversos especialistas. En 2020 se realizaron 215 sesiones y 158 en 2021. Ese año se ampliaron contenidos educativos y se incluyeron temas para otras categorías de salud, como enfermería y trabajo social. En octubre de 2021 se estableció el Sistema Educativo de Salud para el Bienestar (SIESABI), con el objetivo de promover la educación continua y permanente para los trabajadores de la salud. Actualmente ofrece cursos presenciales, virtuales, seminarios permanentes y telementorías, con la posibilidad de dar seguimiento académico a sus suscriptores y vincular cursos prioritarios que están en otras plataformas. La plataforma educativa es una oportunidad para unificar los esfuerzos del sistema de salud en México en la educación continua y permanente de los profesionales que atienden a personas sin seguridad social y, con ello, contribuir en la implementación de un modelo de atención basado en Atención Primaria de Salud (APS).
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COVID-19 , Humanos , COVID-19/epidemiologia , Pessoal de Saúde/educação , Aprendizagem , México/epidemiologiaRESUMO
BACKGROUND: Leclercia adecarboxylata is a bacteria closely related to Escherichia coli according to its biochemical characteristics and is commonly considered non-pathogenic although a growing number of publications classify it as an emerging pathogen. Fosfomycin resistance is a common trait for L. adecarboxylata encoded by fosALA gene. OBJECTIVE: To analyze genomic traits of sixteen L. adecarboxylata strains isolated from blood culture and a bottle of total parenteral nutrition. METHODS: Twenty-eight L. adecarboxylata strains isolated from blood culture and a bottle of total parenteral nutrition were identified biochemically with a Vitek ® automated system. The strains were phenotyped by their growth on Eosin Methylene Blue agar or MacConkey agar plates. Additionally, Pulsed field gel electrophoresis (PFGE) was performed to establish the clonal relationship. The genomic DNA of sixteen strains was obtained using a Qubit ® dsDNA HS Assay Kit and sequenced on an Illumina ® MiSeq instrument. Draft genomes were assembled using PROKKA and Rast. Assemblies were submitted to Resfinder and PathogenFinder from the Center for Genomic Epidemiology in order to find resistance genes and pathogenic potential. IslandViewer4 was also used to find Pathogenicity and Phage Islands. For identification of the fosA gene, manual curation and Clustal analysis was performed. A novel FosA variant was identified. Finally, phylogenetic analysis was performed using VAMPhyRE software and Mega X. RESULTS: In this paper, we report the genomes of sixteen strains of Leclercia adecarboxylata causing an outbreak associated with parenteral nutrition in public hospitals in Mexico. The genomes were analyzed for genetic determinants of virulence and resistance. A high pathogenic potential (pathogenicity index 0.82) as well as multiple resistance genes including carbapenemics, colistin and efflux pumps were determined. Based on sequence analysis, a new variant of the fosALA gene was described. Finally, the outbreak was confirmed by establishing the clonal relationship among the sixteen genomes obtained. CONCLUSIONS: Commensal strains of L. adecarboxylata may acquire genetic determinants that provide mechanisms of host damage and go unnoticed in clinical diagnosis. L. adecarboxylata can evolve in a variety of ways including the acquisition of resistance and virulence genes representing a therapeutic challenge in patient care.
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Infecções por Enterobacteriaceae , Humanos , Infecções por Enterobacteriaceae/epidemiologia , Infecções por Enterobacteriaceae/genética , Infecções por Enterobacteriaceae/complicações , Filogenia , México/epidemiologia , Ágar/uso terapêutico , Antibacterianos , Escherichia coli , Genômica , Surtos de Doenças , Hospitais PúblicosRESUMO
Dengue fever is caused by four related dengue virus serotypes, DENV-1 to DENV-4, where each serotype comprises distinct genotypes and lineages. The last major outbreak in Mexico occurred during 2012 and 2013, when 112,698 confirmed cases were reported (DENV-1 and DENV-2 were predominant). Following partial E, NS2A and NS5 gene sequencing, based on the virus genome variability, we analyzed 396 DENV-1 and 248 DENV-2 gene sequences from serum samples from dengue acute clinical cases from 13 Mexican states, Mutations were identified, and their genetic variability estimated, along with their evolutionary relationship with DENV sequences sampled globally. DENV-1 genotype V and DENV-2 Asian-American genotype V were the only genotypes circulating during the outbreak. Mutations in NS2A and NS5 proteins were widely disseminated and suggested local emergence of new lineages. Phylogeographic analysis suggested viral spread occurred from coastal regions, and tourist destinations, such as Yucatan and Quintana Roo, which played important roles in disseminating these lineages.
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Vírus da Dengue , Dengue , Dengue/epidemiologia , Vírus da Dengue/genética , Surtos de Doenças , Variação Genética , Genótipo , Humanos , México/epidemiologia , FilogeniaRESUMO
ETV6::RUNX1 is a genetic rearrangement of good prognosis in children with acute lymphoblastic leukemia (ALL). In Mexico, its prevalence is low in comparison with Caucasian populations. We developed a novel TaqMan one-step RT-qPCR approach to assess the prevalence of four genetic rearrangements in a cohort of Hispanic children with ALL from Mexico City. The prevalence of common fusion gene transcripts was as follows: TCF3::PBX1 7.7%; BCR::ABL1p 190 3.3%; and KMT2A::AFF1 2.8%, and ETV6::RUNX1was observed with low prevalence (10.5%) in comparison to that reported for developed countries. This is consistent with previous findings on Mexican children with ALL and similar to those reported on children from Hispanic populations. The confirmation of a low prevalence of ETV6::RUNX1 in children of a Hispanic origin represents an advancement in the description of genetic factors of ALL in these populations.
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Haemophilus influenzae is the causal agent of invasive pediatric diseases, such as meningitis, epiglottitis, pneumonia, septic arthritis, pericarditis, cellulitis, and bacteremia (serotype b). Non-typeable H. influenzae (NTHi) strains are associated with localized infections, such as otitis media, conjunctivitis, sinusitis, bronchitis, and pneumonia, and can cause invasive diseases, such as as meningitis and sepsis in immunocompromised hosts. Enolase is a multifunctional protein and can act as a receptor for plasminogen, promoting its activation to plasmin, which leads to the degradation of components of the extracellular matrix, favoring host tissue invasion. In this study, using molecular docking, three important residues involved in plasminogen interaction through the plasminogen-binding motif (251EFYNKENGMYE262) were identified in non-typeable H. influenzae enolase (NTHiENO). Interaction with the human plasminogen kringle domains is conformationally stable due to the formation of four hydrogen bonds corresponding to enoTYR253-plgGLU1 (K2), enoTYR253-plgGLY310 (K3), and enoLYS255-plgARG471/enoGLU251-plgLYS468 (K5). On the other hand, in vitro assays, such as ELISA and far-western blot, showed that NTHiENO is a plasminogen-binding protein. The inhibition of this interaction using polyclonal anti-NTHiENO antibodies was significant. With these results, we can propose that NTHiENO-plasminogen interaction could be one of the mechanisms used by H. influenzae to adhere to and invade host cells.
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Until recently, the incidence of COVID-19 was primarily estimated using molecular diagnostic methods. However, the number of cases is vastly underreported using these methods. Seroprevalence studies estimate cumulative infection incidences and allow monitoring of transmission dynamics, and the presence of neutralizing antibodies in the population. In February 2020, the Mexican Social Security Institute began conducting anonymous unrelated sampling of residual sera from specimens across the country, excluding patients with fever within the previous two weeks and/or patients with an acute respiratory infection. Sampling was carried out weekly and began 17 days before Mexico's first officially confirmed case. The 24,273 sera obtained were analyzed by chemiluminescent-linked immunosorbent assay (CLIA) IgG S1/S2 and, later, positive cases using this technique were also analyzed to determine the rate of neutralization using the enzyme-linked immunosorbent assay (ELISA). We identified 40 CLIA IgG positive cases before the first official report of SARS-CoV-2 infection in Mexico. The national seroprevalence was 3.5% in February and 33.5% in December. Neutralizing activity among IgG positives patients during overall study period was 86.1%. The extent of the SARS-CoV-2 infection in Mexico is 21 times higher than that reported by molecular techniques. Although the general population is still far from achieving herd immunity, epidemiological indicators should be re-estimated based on serological studies of this type.
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BACKGROUND: Zika virus (ZIKV) infection during pregnancy usually shows only mild symptoms and is frequently subclinical. However, it can be vertically transmitted to the fetus, causing microcephaly and other congenital defects. During pregnancy, the immune environment modifications can alter the response to viruses in general and ZIKV in particular. OBJECTIVE: To describe the role of pregnancy in the systemic pro- and anti-inflammatory response during symptomatic ZIKV infection. MATERIALS AND METHODS: A multiplex assay was used to measure 25 cytokines, chemokines, and receptors in 110 serum samples from pregnant and nonpregnant women with and without ZIKV infection with and without symptoms. Samples were collected through an epidemiological surveillance system. RESULTS: Samples from pregnant women with ZIKV infection showed a higher viral load but had similar profiles of inflammatory markers as compared with nonpregnant infected women, except for CXCL10 that was higher in infected pregnant women. Notably, the presence of ZIKV in pregnancy favored a regulatory profile by significantly increasing anti-inflammatory cytokines such as interleukin (IL)-10, receptors IL-1RA, and IL-2R, but only those pro-inflammatory cytokines such as IL-6, interferon (IFN)-α, IFN-γ and IL-17 that are essential for the antiviral response. Interestingly, there were no differences between symptomatic and weakly symptomatic ZIKV-infected groups. CONCLUSION: Our results revealed a systemic anti-inflammatory cytokine and chemokine profile that could participate in the control of the virus. The anti-inflammatory response in pregnant women infected with ZIKA was characterized by high CXCL10, a cytokine that has been correlated with congenital malformations.