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Different syndromes are involved in human psittacosis (flu-like syndrome, atypical pneumonia up to lacrimal gland lymphoma). Diagnostic methods include serology, culture, and PCR. The rate of Chlamydia psittaci (Cp) positive tests among exposed workers is still unknown. Our study aimed to assess the rate of positive tests among workers who have contact with carrier birds in natural reserves from Buenos Aires, Argentina. Secondary aims were to analyze risk factors linked to these outcomes and the occurrence of signs that suggest psittacosis. Nasopharyngeal swabs and serum pairs were collected from employees who had interacted with confirmed carrier birds. Those with detectable DNA of Cp and/or anti-Chlamydia spp. antibody baseline titer ≥ 160 mUI/ml, or at least quadruplicating, were considered positive. Activities performed with or near birds, personal protective equipment use, and previous chronic conditions were assessed. Possible Cp-related pathologies were evaluated during follow-up. A total of 63 exposed workers (71.4% men) with a median age of 35.7 years (IQR 26-39) were evaluated to detect 28.6% positives. Respiratory chronic conditions were the unique factor associated with positive tests (OR 5.2 [1.5-18.5] p < .05). Surprisingly, about a third of the workers resulted positive and all responded to medical treatment, none developing an acute atypical pneumonia syndrome associated with classical presentation of psittacosis. Active testing for early diagnosis and proper treatment in zoological workers exposed to carrier or potentially carrier birds is strongly suggested as part of zoonotic diseases preventive measures.

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Background: Streptococcus pneumoniae, a prominent human pathogen linked to various systemic diseases, includes non-typeable pneumococci marked by the absence of a detectable capsule. However, the majority of invasive infections are attributed to encapsulated strains. This case report details the first documented instance of invasive disease caused by non-typeable S. pneumoniae in Argentina since 2017. Case Presentation: A 19-year-old woman presented with haemorrhagic injuries attributed to chronic oral mucosa irritation. Subsequent hospitalization revealed bone marrow aplasia, leading to antibiotic, antifungal, antiviral, and immunosuppressive treatments, culminating in her discharge. Two weeks later, she was readmitted with sepsis related to a respiratory focus, exhibiting a negative COVID-PCR test. After ten days, ICU admission revealed additional infections: positive COVID-PCR test, fungal sinusitis, and S. pneumoniae bacteremia. Targeted treatments led to improvement, and the patient was subsequently discharged. S pneumoniae characterization: Verification of the capsule's absence utilized traditional methods such as the Quellung reaction, transmission electron microscopy, molecular assays, and Whole Genome Sequencing (WGS). The isolate, identified as ST18335, displayed genetic features and antibiotic resistance patterns, concordant between WGS and the agar dilution method. It demonstrated non-susceptibility to penicillin and cefotaxime, based on meningitis breakpoints, as well as meropenem and cotrimoxazole. Conclusion: This case underscores the clinical significance of non-typeable S. pneumoniae, emphasizing the necessity for a comprehensive approach to identification and characterization. The findings contribute to ongoing discussions regarding the challenges posed by non-typeable strains in vaccine development, understanding clinical impacts, and addressing antibiotic resistance. As the pneumococcal epidemiological landscape evolves, this case serves as a valuable addition to the evolving knowledge surrounding non-typeable S. pneumoniae, highlighting the continued need for surveillance and research in infectious diseases.

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Objetivo: Describir la salud sexual global y por dimensión de un grupo de mujeres universitarias y determinar su relación con variables sociodemográficas, académicas y caracterización en sexualidad. Material y Método: Investigación cuantitativa, descriptiva, correlacional, realizada en 91 mujeres de dos universidades privadas de Guanajuato, se aplicó una cédula de datos y la Escala de salud sexual; el muestreo para las universidades fue probabilístico y para las participantes no probabilístico; se utilizó estadística descriptiva e inferencial y se apegó a las consideraciones ético-legales. Resultados: Participaron 91 mujeres de 18 a 24 años, 74,7% con vida sexual, refirieron de 1 a 11 parejas sexuales, una media de 17 años (DE= 1,73) para inicio de vida sexual, obtuvieron niveles altos de salud sexual (x= 114,85; DE= 11,50) y se encontró relación estadísticamente significativa en variables como inicio de vida sexual, edad de inicio de vida sexual, número de parejas sexuales, vida sexual activa y uso de métodos anticonceptivos. Conclusiones: Las participantes cuentan con niveles altos de salud sexual, así como de conocimientos y actitudes, sin embargo, presentan un nivel medio de prácticas, situación que vulnera la salud y otros aspectos. Este estudio contribuye a brindar un panorama sobre la salud sexual de las jóvenes, así como algunas variables que enfermería debe considerar para la formulación de programas que coadyuven a fomentar la salud sexual.

Objective: To describe the overall sexual health, as well as specific dimensions, of a group of university women and to determine its relationship with sociodemographic, academic and sexuality characterizing variables. Materials and Methods: Quantitative, descriptive, correlational study, carried out on 91 women from two private universities in Guanajuato (Mexico), using a data sheet and the Sexual Health Scale, with probability sampling for the universities and non-probability sampling for the participants. Descriptive and inferential statistics were used and ethical-legal considerations were followed. Results: 91 women aged 18 to 24 years participated, 74.7% had an active sexual life, reported from one to 11 sexual partners, a mean age of 17 years (SD 1.73) for sexual initiation, showed high levels of sexual health awareness (X114.85; SD 11.50) and a statistically significant relationship was found in variables such as sexual initiation, age at sexual initiation, number of sexual partners, sexually active life and use of contraceptive methods. Conclusions: The participants presented a high level of sexual health awareness, as well as knowledge and attitudes, but they presented a medium level of practices, a situation that is detrimental to health and other aspects. This study aims to provide an overview of the sexual health of young women, as well as some variables that nursing practice should consider when formulating programs that help promote sexual health.

Objetivo: Descrever a saúde sexual geral, e por dimensão específica, de um grupo de mulheres universitárias e determinar sua relação com variáveis sociodemográficas, académicas e de caracterização da sexualidade. Material e métodos: Pesquisa quantitativa, descritiva, correlacional, realizada com 91 mulheres de duas universidades privadas de Guanajuato (México), usando uma ficha técnica e a Escala de Saúde Sexual, com amostragem probabilística para as universidades e amostragem não probabilística para as participantes. Foram usadas estatísticas descritivas e inferenciais e respeitaram-se os aspectos ético-legais. Resultados: Participaram 91 mulheres de 18 a 24 anos, 74,7% tinham vida sexual ativa, relataram de um a 11 parceiros sexuais, uma idade média de 17 anos (DP 1,73) para o início da vida sexual, apresentaram altos níveis de saúde sexual (x 114,85; DP 11,50) e foi encontrada uma relação estatisticamente significativa em variáveis como início da vida sexual, idade de início da vida sexual, número de parceiros sexuais, vida sexual ativa e uso de métodos contraceptivos. Conclusões: Os participantes apresentaram elevados níveis de saúde sexual, bem como conhecimentos e atitudes, porém apresentaram um nível médio de práticas, situação que prejudica a saúde e outros aspectos. Este estudo tem como objetivo fornecer um panorama sobre a saúde sexual de mulheres jovens, bem como algumas variáveis que a prática de enfermagem deve considerar na formulação de programas que ajudem a promover a saúde sexual.

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Introduction: Laboratory surveillance of Streptococcus pneumoniae serotypes plays a crucial role in effectively implementing vaccines to prevent invasive pneumococcal diseases. The conventional method of serotyping, known as the Quellung reaction, is both time-consuming and expensive. However, the emergence of MALDI-TOF MS technology has revolutionized microbiology laboratories by enabling rapid and cost-effective serotyping based on protein profiles. Objectives: In this study, we aimed to investigate the viability of utilizing MALDI-TOF MS technology as an adjunctive and screening method for capsular typing of Streptococcus pneumoniae. Our approach involved developing classification models based on MALDI-TOF MS to discern between Streptococcus pneumoniae strains originating from PCV13 (13-valent pneumococcal conjugate vaccine) and NON PCV13 isolates. Methods: Firstly, we established a comprehensive spectral database comprising isolates of serotypes present in the PCV13 vaccine, along with the top 10 most prevalent NON PCV13 serotypes based on local epidemiological data. This database served as a foundation for developing unsupervised models utilizing MALDI-TOF MS spectra, which enabled us to identify inherent patterns and relationships within the data. Our analysis involved a dataset comprising 215 new isolates collected from nationwide surveillance in Argentina. Our approach involved developing classification models based on MALDI-TOF MS to discern between Streptococcus pneumoniae strains originating from PCV13 (13-valent pneumococcal conjugate vaccine) and NON PCV13 isolates. Results: Although our findings revealed suboptimal performance in serotype classification, they provide valuable insights into the potential of machine learning algorithms in this context. The sensitivity of the models ranged from 0.41 to 0.46, indicating their ability to detect certain serotypes. The observed specificity consistently remained at 0.60, suggesting a moderate level of accuracy in identifying non-vaccine serotypes. These results highlight the need for further refinement and optimization of the algorithms to enhance their discriminative power and predictive accuracy in serotype identification.By addressing the limitations identified in this study, such as exploring alternative feature selection techniques or optimizing algorithm parameters, we can unlock the full potential of machine learning in robust and reliable serotype classification of S. pneumoniae. Our work not only provides a comprehensive evaluation of multiple machine learning models but also emphasizes the importance of considering their strengths and limitations. Conclusion: Overall, our study contributes to the growing body of research on utilizing MALDI-TOF MS and machine learning algorithms for serotype identification purposes.

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Background: Hyperthyroidism is the increase in the synthesis and secretion of thyroid hormones. It is rare but serious in children and constitutes approximately 5% of all cases; 15% manifests before 10 years of age. The peak of presentation and the majority of cases (80%) are diagnosed around 10-15 years of age. Adolescence is usually the stage with the highest incidence and it is more frequent in women (5:1). Acute thyrotoxic crisis or thyroid storm is rare and only occurs in a poorly controlled hyperthyroid patient or in a hyperthyroid patient undergoing emergency surgery. It is manifested by fever, extreme tachycardia, tachyarrhythmia with atrial fibrillation, vomiting, diarrhea, agitation and mental confusion. Clinical case: 17-year-old adolescent with Graves' disease with uncontrolled clinical manifestations that did not respond to medical treatment and was scheduled for radical thyroidectomy. 35 points were obtained on the Burch and Wartofsky Scale. It was managed with general anesthesia, reducing stimuli for airway and regional control to reduce surgical stimuli. Adjuvant medications such as magnesium sulfate for intraoperative stability were used. Conclusion: Multimodal anesthesia managed to avoid thyroid storm, postoperative pain, as well as other complications.

Introducción: el hipertiroidismo es el incremento en la síntesis y secreción de hormonas tiroideas. Es raro pero grave en la edad pediátrica y constituye aproximadamente el 5% de todos los casos; el 15% se presenta antes de los 10 años. El pico de presentación y la mayoría de los casos (80%) se diagnostican hacia los 10-15 años. La adolescencia es la etapa de mayor incidencia y más frecuente en mujeres (5:1). La crisis tirotóxica aguda o tormenta tiroidea es rara y solo se presenta en un hipertiroideo mal controlado o en un paciente hipertiroideo intervenido de urgencia. Se manifiesta con fiebre, taquicardia extrema, taquiarritmia con fibrilación auricular, vómito, diarrea, agitación y confusión mental. Caso clínico: adolescente de 17 años con enfermedad de Graves con manifestaciones clínicas descontroladas, la cual no respondió a tratamiento médico y se programó para tiroidectomia radical. Se obtuvieron 35 puntos en la Escala de Burch y Wartofsky. Se manejó con anestesia general y fueron disminuyendo los estímulos para control de vía aérea y regional a fin de disminuir los estímulos quirúrgicos. Se usaron medicamentos adyuvantes como sulfato de magnesio para la estabilidad transoperatoria. Conclusión: la anestesia multimodal logró evitar la tormenta tiroidea, el dolor postoperatorio, así como otras complicaciones.

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Streptococcus pneumoniae is a major cause of severe invasive disease associated with high mortality and morbidity worldwide. A total of 2908 pneumococcal isolates were analyzed between 2006 and 2019. Gold standard pneumococcal serotyping (the Neufeld-Quellung reaction) was performed to identify the serotypes associated with infection in children < 5 years in Argentina and agar dilution method was carried out to determine their profiles to 14 antimicrobial agents. In 2012, the 13-valent pneumococcal conjugate vaccine (PCV13) was included in the National Immunization Program. In this work we have analyzed the local epidemiology of invasive pneumococcal diseases before and after the introduction of this vaccine in order to understand the epidemiological relevance and impact of PCV13. During the periods compared in the present study there was a significant increase in the proportion of non-PCV13 serotypes, serogroup 24 (246.7%) and 12F (85.7%), and a significant decrease in PCV13 serotypes, including serotypes 14 (91.2%), 5 (95.6%) and 1 (84.6%) among others. Another observation was that serotypes 3 (7.4%) and 19A (4.9%) still remain among the most frequent serotypes despite being part of the PCV13 formulation. Regarding antimicrobial resistance, in the present study we observed an increase in erythromycin resistance during the period of study mainly associated to serotype 14 in the pre-PCV13 period and to serogroup 24 in the post-PCV13 period, which also was the major NVT serotype associated with antimicrobial resistance and MDR. Serotypes 14, 24A/B/F and 19A were in the first three places among isolates resistant to all the antibiotics tested. Our data highlight the importance of continuous surveillance to assess the impact of pneumococcal vaccines and the use of antibiotics in the dynamic of pneumococcal serotypes.

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A 58-year-old woman was diagnosed with severe endometriosis and had multiple gastrointestinal tract complications for many years. Candida auris and C. parapsilosis were isolated from the bloodstream. Identification of C. auris was confirmed by amplification and sequencing of the internal transcriber spacer and the D1/D2 domain of the large rRNA gene subunit. Antifungal susceptibility was tested in both isolates using the Clinical Laboratory Standards Institute protocol M27-A3/S4. The patient evolved favorably with systemic antifungal therapy consisting of caspofungin and liposomal amphotericin B.

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Abstract Streptococcus pneumoniae is a major cause of severe invasive disease associated with high mortality and morbidity worldwide. To identify the serotypes most commonly associated with infection in adults in Argentina, 791 pneumococcal isolates from 56 hospitals belonging to 16 provinces and Buenos Aires city were serotyped. The isolates were submitted as part of a National Surveillance Program for invasive pneumococcal disease in adults, which started in 2013. Serotypes 3, 8, 12F, 7F and 1 were the most prevalent among adult patients. During the study period there was no significant difference in serotype distribution between the age groups studied (18-64 and >65 years old), except for serotype 1, 3 and 23A. Most prevalent serotypes in pneumonia were serotype 7F, 1, 12F, 8, and 3. When the clinical diagnosis was meningitis, serotype 3 and 12F were the most prevalent, whereas when the diagnosis was sep-sis/bacteremia the most prevalent was serotype 8. In this work, for the 18-64-year-old group, PPSV23 and PCV13 serotypes accounted for 74.56% and 44.54% respectively of the cases in the studied period. On the other hand, for the >65-year-old group, these serotypes represented 72.30% and 41.42% respectively. The aim of this work was to establish the knowledge bases of the serotypes that cause invasive pneumococcal diseases in the adult population in Argentina and to be able to detect changes in their distribution over time in order to explore the potential serotype coverage of the vaccines in current use.

Resumen Streptococcus pneumoniae es una causa importante de enfermedad invasiva grave asociada con una alta mortalidad y morbilidad en todo el mundo. Para identificar los serotipos principales asociados con la infección en adultos en Argentina, 791 aislamientos de neumococo de 56 hospitales pertenecientes a 16 provincias y la ciudad de Buenos Aires fueron serotipificados. Los aislamientos fueron remitidos como parte del Programa Nacional de Vigilancia para la enfermedad neumocócica invasiva en adultos, que comenzó en 2013. Los serotipos 3, 8, 12F, 7F y 1 fueron los más prevalentes. Durante el período de estudio no hubo diferencias significativas en la distribución de serotipos entre los dos grupos de adultos estudiados (18-64 y >65 años), excepto para los serotipos 1, 3 y 23A. Los serotipos más prevalentes en casos de neumonía fueron 7F, 1, 12F, 8 y 3. Cuando el diagnóstico clínico fue meningitis, los serotipos 3 y 12F fueron los más prevalentes. Y el serotipo 8 fue el más prevalente en la sepsis/bacteriemia. En el grupo de 18-64 años, los serotipos PPSV23 y PCV13 representaron, respectivamente, el 74,56 y el 44,54% de los casos de enfermedad invasiva en el período estudiado. En el grupo de >65 años, estos serotipos representaron el 72,30 y 41,42%, respectivamente. Es importante conocer los serotipos causantes de infecciones neumocócicas invasivas en la población adulta en Argentina y detectar eventuales cambios en su distribución a lo largo del tiempo, para explorar la potencial cobertura de las vacunas utilizadas.

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Streptococcus pneumoniae is a major cause of severe invasive disease associated with high mortality and morbidity worldwide. To identify the serotypes most commonly associated with infection in adults in Argentina, 791 pneumococcal isolates from 56 hospitals belonging to 16 provinces and Buenos Aires city were serotyped. The isolates were submitted as part of a National Surveillance Program for invasive pneumococcal disease in adults, which started in 2013. Serotypes 3, 8, 12F, 7F and 1 were the most prevalent among adult patients. During the study period there was no significant difference in serotype distribution between the age groups studied (18-64 and ≥65 years old), except for serotype 1, 3 and 23A. Most prevalent serotypes in pneumonia were serotype 7F, 1, 12F, 8, and 3. When the clinical diagnosis was meningitis, serotype 3 and 12F were the most prevalent, whereas when the diagnosis was sepsis/bacteremia the most prevalent was serotype 8. In this work, for the 18-64-year-old group, PPSV23 and PCV13 serotypes accounted for 74.56% and 44.54% respectively of the cases in the studied period. On the other hand, for the ≥65-year-old group, these serotypes represented 72.30% and 41.42% respectively. The aim of this work was to establish the knowledge bases of the serotypes that cause invasive pneumococcal diseases in the adult population in Argentina and to be able to detect changes in their distribution over time in order to explore the potential serotype coverage of the vaccines in current use.

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