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This study describes an outbreak of Streptococcus equi subspecies zooepidemicus infections that caused meningoencephalitis and bacteremia related to unpasteurized milk consumption in northeastern Brazil. Epidemiological investigations and a brief literature review were conducted. Strains with possible neurotropism had not been identified in Brazil before these cases; however, in 2023, another case of meningoencephalitis caused by Streptococcus equi sp. zooepidemicus was described, revealing the need to maintain surveillance and highlighting that these neurotropic strains continue to circulate in the environment.
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Brotes de Enfermedades , Meningoencefalitis , Infecciones Estreptocócicas , Streptococcus equi , Meningoencefalitis/microbiología , Brasil/epidemiología , Infecciones Estreptocócicas/microbiología , Humanos , Streptococcus equi/aislamiento & purificación , Streptococcus equi/clasificación , Masculino , Animales , Femenino , Adulto , Leche/microbiología , Persona de Mediana Edad , StreptococcusRESUMEN
BACKGROUNDS: Fortunately, much has been studied about COVID-19 in patients with inflammatory bowel diseases (IBD). Evidence suggests that these patients do not appear to be at increased risk of severe COVID-19. However, there are still some uncertainties regarding the clinical manifestations of COVID-19 in patients with immune-mediated diseases. OBJECTIVE: This study aimed to describe the main symptoms of COVID-19 and their frequency in IBD patients and evaluate the impact of the IBD therapeutic drugs on clinical presentation of COVID-19 and to determine factors associated with COVID-19 in this population. METHODS: Adult patients with IBD from three tertiary-care public, teaching hospitals in Ceará, Northeastern Brazil, were evaluated during one scheduled appointment from March to December 2020. Patients with possible or confirmed COVID-19 were compared with patients without COVID-19. Furthermore, incidences of each symptom were evaluated based on the use of IBD therapeutic drugs. RESULTS: A total of 515 patients with IBD were included in the study: 234 with CD, and 281 with UC. Of these, 174 patients (34%) had possible/confirmed COVID-19 of whom 156 (90%) were symptomatic. Main symptoms were fever (65%) and headache (65%); gastrointestinal symptoms occurred in one third of patients and were higher than COVID-19 in general population. The factors associated with having COVID-19 were female gender (OR 1.71, 95%CI: 1.17-2.50); contact at home (OR 5.07, 95%CI: 3.31-7.78) and outside the home (OR 3.14, 95%CI: 2.10-4.71) with a case of COVID-19; work outside of the home (OR 1.87, 95%CI: 1.26-2.78); family history of COVID-19 (OR 2.29, 95%CI 1.58-3.33) use of salicylate (OR 1.71, 95%CI: 1.17-4.28); and asthma (OR 7.10, 95%CI: 1.46-34.57). CONCLUSION: IBD patients at high risk of COVID-19 infection may need to avoid salicylate therapy but further studies are necessary to confirm this association.
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COVID-19 , Enfermedades Inflamatorias del Intestino , Salicilatos , Humanos , COVID-19/complicaciones , Femenino , Masculino , Adulto , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Enfermedades Inflamatorias del Intestino/complicaciones , Persona de Mediana Edad , Salicilatos/efectos adversos , Salicilatos/uso terapéutico , Brasil/epidemiología , SARS-CoV-2 , Factores de Riesgo , AncianoRESUMEN
Human Rabies (HR) is a fatal zoonotic disease caused by lyssaviruses, with the rabies virus (RABV) identified as the causative agent. While the incidence of HR transmitted by dogs has decreased in Latin America, there has been a corresponding rise in transmission via wild animals. Given the lack of effective treatments and specific therapies, the management of HR relies on the availability of post-exposure prophylaxis and animal control measures. This review examines the dynamics and spread of HR during the global pandemic.
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COVID-19 , Virus de la Rabia , Rabia , Humanos , Animales , Perros , Rabia/epidemiología , Rabia/prevención & control , Rabia/veterinaria , Pandemias/prevención & control , Brasil/epidemiología , COVID-19/epidemiologíaRESUMEN
Genito-urinary tuberculosis (TB) corresponds to the second most common cause of extrapulmonary tuberculosis EPTB worldwide. It is however rare and is often clinically indistinguishable from testicular malignancy and infarction. HIV hugely increases the risk of TB in unusual sites; we present two such cases of testicular tuberculosis. The diagnosis was based respectively on histopathological findings, acid-bacilli smear of biopsy, semen, and culture.
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Infecciones por VIH , Mycobacterium tuberculosis , Neoplasias Testiculares , Tuberculosis , Masculino , Humanos , Infecciones por VIH/complicaciones , Tuberculosis/diagnósticoRESUMEN
ABSTRACT Human Rabies (HR) is a fatal zoonotic disease caused by lyssaviruses, with the rabies virus (RABV) identified as the causative agent. While the incidence of HR transmitted by dogs has decreased in Latin America, there has been a corresponding rise in transmission via wild animals. Given the lack of effective treatments and specific therapies, the management of HR relies on the availability of post-exposure prophylaxis and animal control measures. This review examines the dynamics and spread of HR during the global pandemic.
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ABSTRACT Backgrounds: Fortunately, much has been studied about COVID-19 in patients with inflammatory bowel diseases (IBD). Evidence suggests that these patients do not appear to be at increased risk of severe COVID-19. However, there are still some uncertainties regarding the clinical manifestations of COVID-19 in patients with immune-mediated diseases. Objective: This study aimed to describe the main symptoms of COVID-19 and their frequency in IBD patients and evaluate the impact of the IBD therapeutic drugs on clinical presentation of COVID-19 and to determine factors associated with COVID-19 in this population. Methods: Adult patients with IBD from three tertiary-care public, teaching hospitals in Ceará, Northeastern Brazil, were evaluated during one scheduled appointment from March to December 2020. Patients with possible or confirmed COVID-19 were compared with patients without COVID-19. Furthermore, incidences of each symptom were evaluated based on the use of IBD therapeutic drugs. Results: A total of 515 patients with IBD were included in the study: 234 with CD, and 281 with UC. Of these, 174 patients (34%) had possible/confirmed COVID-19 of whom 156 (90%) were symptomatic. Main symptoms were fever (65%) and headache (65%); gastrointestinal symptoms occurred in one third of patients and were higher than COVID-19 in general population. The factors associated with having COVID-19 were female gender (OR 1.71, 95%CI: 1.17-2.50); contact at home (OR 5.07, 95%CI: 3.31-7.78) and outside the home (OR 3.14, 95%CI: 2.10-4.71) with a case of COVID-19; work outside of the home (OR 1.87, 95%CI: 1.26-2.78); family history of COVID-19 (OR 2.29, 95%CI 1.58-3.33) use of salicylate (OR 1.71, 95%CI: 1.17-4.28); and asthma (OR 7.10, 95%CI: 1.46-34.57). Conclusion: IBD patients at high risk of COVID-19 infection may need to avoid salicylate therapy but further studies are necessary to confirm this association.
RESUMO Contexto: Felizmente, muito se tem estudado sobre a COVID-19 em pacientes com doenças inflamatórias intestinais (DII). As evidências sugerem que esses pacientes não parecem ter risco aumentado de COVID-19 grave. Mas ainda se tem algumas incertezas com relação às manifestações clínicas da COVID-19 em portadores de doenças imunomediadas. Objetivo: Este estudo teve como objetivo descrever os principais sintomas da COVID-19 e sua frequência em pacientes com DII e avaliar o impacto dos medicamentos utilizados no tratamento das DII na apresentação clínica da COVID-19. Métodos: Pacientes adultos com DII de três hospitais públicos terciários de ensino do Ceará, Nordeste do Brasil, foram avaliados em consulta ambulatorial no período de março a dezembro de 2020. Pacientes com COVID-19 possível ou confirmada foram comparados com pacientes sem COVID-19. Além disso, as incidências de cada sintoma foram avaliadas com base no uso de medicamentos utilizados para tratamento da DII. Resultados: Foram incluídos no estudo 515 pacientes com DII: 234 com DC e 281 com RCU. Destes, 174 pacientes (34%) tinham COVID-19 possível/confirmado, dos quais 156 (90%) eram sintomáticos. Os principais sintomas foram febre (65%) e dor de cabeça (65%); sintomas gastrointestinais ocorreram em um terço dos pacientes, sendo mais frequentes do que na população geral com COVID-19. Os fatores associados a ter COVID-19 foram sexo feminino (OR 1,71, IC95%: 1,17-2,50); ter contato com caso de COVID-19, tanto intradomiciliar (OR 5,07; IC95%: 3,31-7,78) como fora do domicílio (OR 3,14; IC95%: 2,10-4,71); trabalhar fora de casa (OR 1,87; IC95%: 1,26-2,78); história familiar de COVID-19 (OR 2,29, IC95% 1,58-3,33), uso de salicilato (OR 1,71, IC95%: 1,17-4,28) e asma (OR 7,10; IC95%: 1,46-34,57). Conclusão: Pacientes com DII com alto risco de infecção por COVID-19 podem precisar evitar a terapia com salicilatos, mas mais estudos são necessários para confirmar esta associação.
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Background: Failure of first-line regimens with dolutegravir, a high genetic barrier antiretroviral of the integrase inhibitor class, although uncommon, tends to increase in prevalence due to broader use. Objective: To describe the clinical case of an HIV/Tuberculosis coinfected patient who developed Human Immunodeficieny Virus (HIV) treatment failure during dolutegravir therapy. Case report: Male, 29 years old, presented with a right cervical mass, dry cough, and hyporexia, which lasted 2 weeks. Diagnostic tests were positive for tuberculosis and HIV. The viral load was 437,927 cp/mL (Log = 5.64). Antiretroviral therapy was initiated with Tenofovir/Lamivudine and Dolutegravir (TDF/3TC and DTG), the latter at a dose of 50 mg/day, as was a regimen for tuberculosis. After 8 months, therapeutic failure was verified. Genotyping was requested, with detection of the H51Y and E157Q mutations in the integrase. Conclusion: Attention when determining the antiretroviral therapy treatment regimen of HIV/TB coinfected patients is paramount. Poor adherence to antiretroviral therapy and follow-up may have contributed to treatment failure and resistance.
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Herein, we report two cases of severe mpox in patients with advanced acquired immunodeficiency syndrome from Brazil who developed atypical lesions and prolonged illness, one of whom had a fatal outcome. Both patients experienced serious complications involving the perianal and genital regions and prolonged disease with persistent viremia.
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Síndrome de Inmunodeficiencia Adquirida , Mpox , Humanos , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Mpox/complicaciones , Viremia/complicaciones , BrasilRESUMEN
The aim of this study is to evaluate the chlorhexidine gluconate (CHG) susceptibility in both planktonic cells and biofilm of 32 Gram-negative (Gn) and 6 Gram-positive (Gp) isolates by minimal inhibitory concentration (2-256 µg/mL for Gn and 2-32 µg/mL for Gp), minimal bactericidal concentration (4-256 µg/mL for Gn and 2-32 µg/mL for Gp) in planktonic cells, and minimal biofilm elimination concentration (128 ≥ 16,384 µg/mL in Gn and 32 ≥ 16,384 µg/mL in Gp) in biofilm environment. Our study showed that Gn isolates have higher minimal concentrations than Gp and bacteria in biofilms are more tolerant than planktonic ones. No correlation between MBC or MBEC and biofilm formation was statistically confirmed. The Eagle effect, previously described for antimicrobials and antifungals, was evidenced in this work for CHG, an antiseptic. Besides that, the phenomenon was described in 23/38 isolates (60.5%), raising minimal concentration up to ≥ 16,384 µg/mL. Our study showed that clinical isolates have a high ability to form biofilm allowing them to tolerate CHG concentrations as high as the ones used in clinical practice. Therefore, attention should be given to the occurrence of this phenomenon to avoid false susceptibility results.
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Infección Hospitalaria , Águilas , Animales , Humanos , Clorhexidina/farmacología , Antibacterianos/farmacología , Plancton , Biopelículas , Pruebas de Sensibilidad MicrobianaRESUMEN
Effective therapies for multidrug-resistant (MDR) microorganisms, especially Gram-negative bacteria, are becoming rare. Also, solid-organ transplant recipients are at high risk of MDR Gram-negative bacilli infection. Urinary tract infections are the most frequent bacterial infections in kidney transplant recipients and are an important cause of mortality after renal transplantation. We describe a case of complicated urinary tract infection in a kidney transplant patient due to extensively drug-resistant (XDR) K. pneumoniae treated successfully with a regimen comprising a combination of chloramphenicol and ertapenem. We do not recommend chloramphenicol as a first-line choice for treating complicated urinary tract infections. Still, we believe it is an alternative for infections caused by MDR and/or XDR pathogens in renal transplant patients, as other options are nephrotoxic.
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Trasplante de Riñón , Infecciones Urinarias , Humanos , Antibacterianos/uso terapéutico , Antibacterianos/farmacología , Cloranfenicol/farmacología , Trasplante de Riñón/efectos adversos , Klebsiella pneumoniae , Farmacorresistencia Bacteriana Múltiple , Bacterias Gramnegativas , Infecciones Urinarias/diagnóstico , Infecciones Urinarias/tratamiento farmacológicoRESUMEN
Streptococcus constellatus is a gram-positive coccus member of the Streptococcus anginosus group (SAG). It can be found in the oral flora, and may cause abscess more commonly in the gastrointestinal tract, lungs, and heart. Brain abscesses are severe neurological infections with high mortality rates. Streptococcus species other than S. pneumoniae are rare causes of brain abscesses. This case report highlights a severe case of extra and intracranial abscesses due to S. constellatus in an immunocompetent host.
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Absceso Encefálico , Trombosis del Seno Sagital , Streptococcus constellatus , Humanos , Absceso Encefálico/complicaciones , Absceso Encefálico/diagnóstico por imagenRESUMEN
ABSTRACT Herein, we report two cases of severe mpox in patients with advanced acquired immunodeficiency syndrome from Brazil who developed atypical lesions and prolonged illness, one of whom had a fatal outcome. Both patients experienced serious complications involving the perianal and genital regions and prolonged disease with persistent viremia.
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ABSTRACT Streptococcus constellatus is a gram-positive coccus member of the Streptococcus anginosus group (SAG). It can be found in the oral flora, and may cause abscess more commonly in the gastrointestinal tract, lungs, and heart. Brain abscesses are severe neurological infections with high mortality rates. Streptococcus species other than S. pneumoniae are rare causes of brain abscesses. This case report highlights a severe case of extra and intracranial abscesses due to S. constellatus in an immunocompetent host
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BACKGROUND: The incidence of multidrug resistant organisms (MDROs) infections among solid organ transplant (SOT) patients is very high in Brazil. METHODS: This review will discuss antimicrobial use and resistance in SOT in Brazil, highlighting the main barriers and facilitators for implementation of an antimicrobial stewardship programme (ASP). RESULTS: The most common group of MDROs is carbapenem-resistant Gram-negative bacteria and vancomycin-resistant Enterococcus. Carbapenem-resistant Enterobacterales (CREs) are the most frequent MDROs and have been reported as donor-derived as well. Although ASPs are mandatory in the country, there is a lack of information regarding ASPs in SOT recipients. The main barriers for the implementation of ASPs in Brazilian hospitals are lack of electronic medical records, absence of national guidelines specific to SOT recipients, lack of recommendations on surveillance culture to evaluate colonization and transmission of donor-derived MDROs, limited availability of rapid diagnostic tests, and insufficient pharmacist and clinician time allocated to ASP activities in some SOT centers. CONCLUSIONS: The incidence of MDRO infections caused mainly by VREs and CREs is very high in the country. There is limited data regarding antimicrobial use among SOT recipients in Brazil. The absence of antimicrobial stewardship national guidelines specific to SOT recipients is one of the main barriers for the implementation of ASPs in Brazilian hospitals.
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Programas de Optimización del Uso de los Antimicrobianos , Trasplante de Órganos , Enterococos Resistentes a la Vancomicina , Antibacterianos/uso terapéutico , Brasil/epidemiología , Carbapenémicos , Humanos , Trasplante de Órganos/efectos adversos , Receptores de Trasplantes , VancomicinaRESUMEN
BACKGROUND: Optimal COVID-19 management is still undefined. In this complicated scenario, the construction of a computational model capable of extracting information from electronic medical records, correlating signs, symptoms and medical prescriptions, could improve patient management/prognosis. METHODS: The aim of this study is to investigate the correlation between drug prescriptions and outcome in patients with COVID-19. We extracted data from 3674 medical records of hospitalized patients: drug prescriptions, outcome, and demographics. The outcome evaluated was hospital outcome. We applied correlation analysis using a Logistic Regression algorithm for machine learning with Lasso and Matthews correlation coefficient. RESULTS: We found correlations between drugs and patient outcomes (death/discharged alive). Anticoagulants, used very frequently during all phases of the disease, were associated with good prognosis only after the first week of symptoms. Antibiotics very frequently prescribed, especially early, were not correlated with outcome, suggesting that bacterial infections may not be important in determining prognosis. There were no differences between age groups. CONCLUSIONS: In conclusion, we achieved an important result in the area of Artificial Intelligence, as we were able to establish a correlation between concrete variables in a real and extremely complex environment of clinical data from COVID-19. Our results are an initial and promising contribution in decision-making and real-time environments to support resource management and forecasting prognosis of patients with COVID-19.
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Tratamiento Farmacológico de COVID-19 , Antibacterianos , Anticoagulantes , Inteligencia Artificial , Prescripciones de Medicamentos , Hospitalización , Humanos , Pronóstico , Estudios RetrospectivosRESUMEN
BACKGROUND: Only two naturally occurring human Sabiá virus (SABV) infections have been reported, and those occurred over 20 years ago. METHODS: We diagnosed two new cases of SABV infection using metagenomics in patients thought to have severe yellow fever and described new features of histopathological findings. RESULTS: We characterized clinical manifestations, histopathology and analyzed possible nosocomial transmission. Patients presented with hepatitis, bleeding, neurological alterations and died. We traced twenty-nine hospital contacts and evaluated them clinically and by RT-PCR and neutralizing antibodies. Autopsies uncovered unique features on electron microscopy, such as hepatocyte "pinewood knot" lesions. Although previous reports with similar New-World arenavirus had nosocomial transmission, our data did not find any case in contact tracing. CONCLUSIONS: Although an apparent by rare, Brazilian mammarenavirus infection is an etiology for acute hemorrhagic fever syndrome. The two fatal cases had peculiar histopathological findings not previously described. The virological diagnosis was possible only by contemporary techniques such as metagenomic assays. We found no subsequent infections when we used serological and molecular tests to evaluate close contacts.
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Arenavirus del Nuevo Mundo , Infección Hospitalaria , Fiebre Amarilla , Anticuerpos Neutralizantes , Brasil/epidemiología , HumanosRESUMEN
Capnocytophaga canimorsus is a gram-negative rod that is part of the commensal microbiota of dogs' and cats' mouths. In this case, we report an 85-year-old man with COVID-19 who had his right arm bitten by a dog. His symptoms were impaired consciousness, agitation and aggressive behavior. Physical examination revealed neck stiffness and Brudzinski's sign. The cerebrospinal fluid culture was compatible with Capnocytophaga canimorsus. He required intensive care and received a 14-day prescription of meropenem. After 40 days of hospitalization, the patient was fully recovered and was discharged. This case highlights the importance of physician and microbiologist be awareness of this disease, mainly in patients with neurological symptoms after a dog or cat bite.
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Mordeduras y Picaduras , COVID-19 , Infecciones por Bacterias Gramnegativas , Meningitis , Animales , Mordeduras y Picaduras/complicaciones , COVID-19/complicaciones , Capnocytophaga , Perros , Infecciones por Bacterias Gramnegativas/complicaciones , Infecciones por Bacterias Gramnegativas/diagnóstico , Humanos , MasculinoRESUMEN
Clostridioides difficile (CD) is the most frequent cause of healthcare related diarrhea and its severity has increased in the last decade by the spread of hypervirulent strains. Most important CD virulence factor is toxin production; however, not only toxins are responsible for Clostridioides virulence. We sequenced 38 strains and analyzed the presence and integrity of 24 virulence (including toxin) genes. We identified 28 toxigenic strains, six also presented the cdt genes. Only six strains didn't present all others genes searched. All absent genes were adhesion related. Understand others CD virulence factors can lead to a best understanding on this matter.
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Toxinas Bacterianas , Clostridioides difficile , Infecciones por Clostridium , Toxinas Bacterianas/genética , Brasil , Clostridioides , Clostridioides difficile/genética , Hospitales , Humanos , Virulencia/genética , Factores de Virulencia/genética , Secuenciación Completa del GenomaRESUMEN
Serratia marcescens is an emerging opportunistic pathogen with high genetic diversity. This article describes the microbiological characteristics of isolates and the risk factors for infections caused by carbapenem-resistant S. marcescens. A retrospective study of patients colonized (n=43) and infected (n=20) with carbapenem-resistant S. marcescens over a 3-year period was conducted. Polymerase chain reaction for carbapenemase genes and molecular typing of all available strains was performed. Forty-two isolates were analysed, including three environmental samples identified during an outbreak. Thirty-five carbapenem-resistant S. marcescens carried blaKPC-2, one isolate was blaNDM-positive and four isolates carried blaOXA-101. The genomes were grouped into three clusters with 100% bootstrap; three patterns of mutations on ompC and ompF were found. The strains carried virulence genes related to invasion and haemolysis, and the environmental strains presented fewer mutations on the virulence genes than the clinical strains. Multi-variate analysis showed that previous use of polymyxin (P=0.008) was an independent risk factor for carbapenem-resistant S. marcescens infection. This study highlighted that blaKPC-2 in association with ompC or ompF mutation was the most common mechanism of resistance in the study hospital, and that previous use of polymyxin was an independent risk factor for carbapenem-resistant S. marcescens. There was a predominant clone, including the environmental isolates, suggesting that cross-transmission was involved in the dissemination of this pathogen.
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Enterobacteriaceae Resistentes a los Carbapenémicos/genética , Infecciones Oportunistas/genética , Infecciones por Serratia/fisiopatología , Serratia marcescens/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Brotes de Enfermedades , Femenino , Variación Genética , Genotipo , Humanos , Masculino , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Tipificación Molecular , Fenotipo , Estudios Retrospectivos , Adulto JovenRESUMEN
ABSTRACT Capnocytophaga canimorsus is a gram-negative rod that is part of the commensal microbiota of dogs' and cats' mouths. In this case, we report an 85-year-old man with COVID-19 who had his right arm bitten by a dog. His symptoms were impaired consciousness, agitation and aggressive behavior. Physical examination revealed neck stiffness and Brudzinski's sign. The cerebrospinal fluid culture was compatible with Capnocytophaga canimorsus. He required intensive care and received a 14-day prescription of meropenem. After 40 days of hospitalization, the patient was fully recovered and was discharged. This case highlights the importance of physician and microbiologist be awareness of this disease, mainly in patients with neurological symptoms after a dog or cat bite.