Fiebre tifoidea: una etiología poco frecuente de síndrome febril prolongado en pediatría / Typhoid fever: a rare etiology of prolonged febrile illness in pediatrics / Febre tifoide: uma etiología rara de síndrome febril prolongada em pediatría

Introducción: Las infecciones representan la etiología más frecuente del síndrome febril prolongado (SFP). Si bien las fiebres entéricas constituyen una causa posible, en Uruguay su prevalencia ha disminuido significativamente con la mejora de las condiciones socio sanitarias. Objetivo: Comunicar el caso de un adolescente con una etiología actualmente excepcional de SFP. Caso clínico 14 años, sano, zona suburbana. Comienza 2 semanas previo al ingreso con dolor en hemiabdomen superior. Agrega cefalea holocraneana leve y vómitos ocasionales. 5 días previos al ingreso fiebre 40°C axilar, un pico diario, sin otra sintomatología. Tránsito digestivo bajo y urinario normal. Examen físico: lúcido, buen aspecto general, abdomen doloroso a la palpación profunda en epigastrio. Sin irritación peritoneal. Resto normal. Analítica: Leucocitos 5200mm3, Proteína C reactiva 71.4mg/dL, hemocultivo sin desarrollo. Ecografía abdominal, radiografía de tórax y ecocardiograma normales. Serologías para Virus Epstein Barr, Citomegalovirus, y Bartonella henselae negativas. Orina normal, urocultivo sin desarrollo. Persiste con fiebre, agrega exantema macropapular evanescente en tronco, sin otros síntomas. Al 7° día de internación nuevo hemocultivo: Salmonella Typhi sensible a ampicilina que recibe por 14 días. Buena evolución. Discusión: La fiebre tifoidea es una enfermedad infectocontagiosa, aguda, potencialmente mortal. Las condiciones socioeconómicas son determinantes en su transmisión. La sensibilidad del hemocultivo es mayor durante la primera semana de enfermedad, por lo que en ocasiones es necesario reiterarlo. Sus manifestaciones clínicas inespecíficas y la baja incidencia hacen que esta etiología no sea habitualmente sospechada en nuestro medio. Por tanto, es importante aumentar el índice de sospecha y considerar entre los diagnósticos diferenciales de SFP esta etiología.

Introduction: Infections are the most frequent etiology of prolonged febrile illness (PFI). Although enteric fevers are a possible cause, their prevalence has significantly diminished in Uruguay, due to improved socio-sanitary conditions. Objective: To communicate the case of an adolescent with a currently exceptional etiology of PFI. Clinical case: 14 years old, healthy, suburban area. Two days prior to admission the patient has pain in upper hemi abdomen. Adds mild holocranial headache and occasional vomiting. 5 days prior to admission axilary temperature of 40°C, one daily peak, without other symptoms. Normal lower digestive and urinary transit. Physical examination: lucid, good general aspect, pain at deep palpation in epigastrium. No peritoneal irritation. Rest is normal. Laboratory: leukocytes 5200 mm3, C-reactive protein 71.4mg/dL, blood culture shows no growth. Abdominal sonogram, thoracic X-ray and echocardiogram are normal. Negative serology for Epstein Barr Virus, Cytomegalovirus and Bartonella henselae. Normal urine, urine culture with no growth. Fever persists, adds evanescent macropapular exanthema in on the trunk, without other symptoms. On the 7th day in hospital a new blood culture shows Salmonella Typhi sensitive to ampicillin, which he receives for 14 days. Good evolution. Discussion: Typhoid fever is an acute, life-threatening, infectious disease. Socioeconomic conditions are determinant in its transmission. Blood culture sensitivity is greater during the first week of the disease, that is why it must occasionally be repeated. Its unspecific clinical manifestations and low incidence make this etiology not be usually suspected in our surroundings. It is therefore important to increase our suspicion and to consider it amongst differential diagnosis in PFI.

Introdução: As infecções representam a etiologia mais frequente da síndrome febril prolongada (SFP). Embora as febres entéricas sejam uma causa possível, no Uruguai sua prevalência diminuiu significativamente com a melhoria das condições sociossanitárias. Objetivo: Relatar o caso de um adolescente com etiologia atualmente excepcional de SFP. Caso clínico 14 anos, saudável, zona suburbana. Começa 2 semanas antes da admissão com dor no abdome superior. Adiciona dor de cabeça holocraniana leve e vômitos ocasionais. 5 dias antes da admissão febre 40°C axilar, pico diário, sem outros sintomas. Trânsito digestivo inferior e trânsito urinário normais. Exame físico: lúcido, bom aspecto geral, abdome doloroso à palpação profunda no epigástrio. Sem irritação peritoneal. Resto normal. Análise: Leucócitos 5200mm3, proteína C reativa 71,4mg/dL, hemocultura sem desenvolvimento. Ultrassonografia abdominal, radiografia de tórax e ecocardiograma foram normais. As sorologias para vírus Epstein Barr, Citomegalovírus e Bartonella henselae foram negativas. Urina normal, urocultura sem desenvolvimento. Persiste com febre, acrescenta erupção macropapular evanescente no tronco, sem outros sintomas. No 7º dia de internação, nova hemocultura: Salmonella Typhi sensível à ampicilina, que recebeu por 14 dias. Boa evolução. Discussão: A febre tifóide é uma doença infecciosa aguda, potencialmente fatal. As condições socioeconômicas são decisivas na sua transmissão. A sensibilidade da hemocultura é maior durante a primeira semana da doença, por isso às vezes é necessário repeti-la. Suas manifestações clínicas inespecíficas e baixa incidência fazem com que essa etiologia não seja usualmente suspeitada em nosso meio. Portanto, é importante aumentar o índice de suspeição e considerar essa etiologia entre os diagnósticos diferenciais da SFP.

Reactividad de sueros de ratones inmunizados con vesículas de membrana externa derivadas de Salmonella entérica / Reactivity of sera from mice immunized with outer membrane vesicles derived from Salmonella enterica

La fiebre tifoidea causada por Salmonella Paratyphi A (fiebre paratifoidea) es indistinguible de la producida por Salmonella Typhi y el grado de incidencia ha aumentado en los últimos años, especialmente en el sudeste asiático. Por otro lado, la diarrea y otras complicaciones entéricas causadas por Salmonella Enteritidis y Salmonella Typhimurium continúan siendo un problema de salud grave, especialmente en países subdesarrollados. Las vacunas continúan siendo la forma más efectiva de prevenir estas enfermedades. Existen vacunas basadas en el polisacárido capsular de Salmonella Typhi que protegen contra la fiebre tifoidea; sin embargo, no hay vacunas efectivas licenciadas para uso en humanos que prevengan las enfermedades producidas por los serotipos de Salmonella no tifoideas. El desarrollo de una formulación con capacidad para proteger contra estas enfermedades sigue siendo un desafío para la comunidad científica. En este trabajo se evaluó, mediante Western blot, la reactividad de los sueros de ratones inmunizados por vía subcutánea con formulaciones basadas en vesículas de membrana externa derivadas de Salmonella Paratyphi A, Salmonella Enteritidis y Salmonella Typhimurium, contra los respectivos lisados celulares, para identificar la formulación que induce la mejor respuesta inmunológica cruzada. Los resultados obtenidos indicaron una alta reactividad de todos los sueros a los lisados, sin una diferencia aparente entre ellos. Sin lugar a dudas, se deberán realizar pruebas de inmunogenicidad seguidas de pruebas de retos cruzados para identificar un candidato vacunal. Estos resultados sugieren que las vesículas de membrana externa empleadas en este estudio están compuestas por antígenos posiblemente conservados en los tres serotipos de Salmonella y que pueden inducir una respuesta inmune de amplio espectro y protección cruzada(AU)

Typhoid fever caused by Salmonella Paratyphi A (paratyphoid fever) is indistinguishable from that caused by Salmonella Typhi and the degree of incidence has increased in recent years, especially in Southeast Asia. On the other hand, diarrhea and other enteric complications caused by Salmonella Enteritidis and Salmonella Typhimurium continue to be a serious health problem, especially in underdeveloped countries. Vaccines continue to be the most effective way to prevent these diseases. There are vaccines based on Salmonella Typhi capsular polysaccharide, which protects against typhoid fever; however, there are no effective vaccines licensed for use in humans to prevent disease caused by nontyphoidal Salmonella serotypes. Developing a formulation capable of protecting against these diseases remains a challenge for the scientific community. In this work, the reactivity of the sera of mice immunized subcutaneously with formulations based on Outer Membrane Vesicles (OMV) derived from Salmonella Paratyphi A, Salmonella Enteritidis and Salmonella Typhimurium, was evaluated by Western blot, against the respective cell lysates to identify the formulation that induces the best cross immune response. The results obtained indicated a high reactivity of all the sera to the lysates; without an apparent difference between them. Undoubtedly, immunogenicity tests followed by cross-challenge tests should be performed to identify a vaccine candidate. These results suggest that the OMV used in this study are composed of possibly conserved antigens in the three Salmonella serotypes and that they can induce a broad-spectrum immune response and cross protection(AU)

Seropositividad de H. pylori y Fiebre Tifoidea en Pacientes iraquíes con dispesia / Seropositivity of H. pylori and Typhoid Fever in Dyspesia Iraqi Patients

Background: There are many studies highlight the association between Helicobacter pylori seropositivity with typhoid fever in human populations and there is no study in Iraq. Aim: Our study designed to estimate the correlation between seroprevelace of H. pylori and Typhoid fever in clinically examined patients as dyspeptic and typhoid fever infected. Methods: From May (2016) to February (2018), a total of 213 patients (134 females and 79 male) attending an enterology outpatient clinic in AL-Najaf province, Iraq. The patients with age range from 10 to 90 years and with symptoms of dyspepsia and typhoid fever (as fever, diarrhea, headache), were referred to serologic diagnosis of antibodies against H. pylori (IgG) and Typhoid (IgG and/or IgM), using the Rapid Tests Cassette. Results: Of a total of 213 clinically examined as dyspeptic and typhoid fever infected patients,134 (63.0%) were females and 79 (37.0%) were males.In this study, 82 (38.5 %) of 213 patients were seropositive for typhoid fever and 131 patients were seronegative. Moreover, 128 (60.1 %) of 213 patients were seropositive for H.pylori IgG (51 case,39.8%, typhoid seropositive, and 77 case,60.2%, typhoid seronegative) and 82 were seronegative. The serologic co-infection diagnosed in 51 (24.0%) patients. The seropositivity of typhoid fever was higher in H. pylori seropositive patients, co-infections (62.2 %), than H. pylori seronegative patients (37.8%). The co-infection was more in female (64.7%) than male (35.3%). In respect of age H. pylori seropositivity was more prevelance (25.8%) in 30s age group where as co-infection was more prevalence in 40s age group (29.4%). But the statistical analysis showed insignificant association of H. pylori with typhoid fever (P value = 0.6203), gender (P value = 0.4770) and age groups (P value = 0.0745). Conclusion: Our study indicates that H. pylori seropositive dyspepsia more susceptiple to typhoid fever particularly in female and 40s ages and suggest there was insignificant relationship amongst seropositivity of H. pylori and typhoid fever within dyspepsia patient

Estudio de problemas de enfermedades causados ​​por Salmonella y relación con la fiebre tifoidea / Study of Illness Problems Caused By Salmonella and Relation with Typhoid

There is urgent need to address illness problems caused by Salmonella enteric serotype Typhibacteria. The bacteria are deposited in water or food by human carrier and are then spread to other people in the area. In this research, a blood specimens were collected from typhoid fever patients, and serum levels of IFN-γ and IL-6 during the chronic and acute phase in typhoid patients group was determined according protocol kit and calculation, results were higher levels in chronic phase (137.187 ± 0.703.427 ± 206.545pg/ml respectively) and in acute phase were 128.787 ± 2.522, 137.733 ± 23.424 pg/ml, respectively with highly significant (P ≤ 0.01) than those in healthy control group. Salmonella infects hosts as diversified as human, animal, and plant

Factores epidemiológicos en pacientes con infección por salmonella tiphy hospitalizados en el Hospital General, durante el periodo de 2013 - 2017 / Epidemiological factors in patients with Salmonella tiphy infection hospitalized in the General Hospital, during the period 2013 - 2017

Las infecciones asociadas a enterobacterias se presentan con gran frecuencia tanto en pacientes provenientes de la comunidad como en pacientes hospitalizados. Dentro de este gran grupo de bacterias, los especímenes del género Salmonella que son un grupo de enterobacterias gramnegativas y patógenos humanos conocido en países en vías de desarrollo e industrializados. Estas infecciones presentan una gran relevancia, esto debido a su capacidad para generar un variado espectro de manifestaciones, las cuales ven desde procesos auto limitado hasta llegar a entidades clínicas que se asocian a una alta morbilidad y mortalidad. Se encuentra asociado a la trasmisión por alimentos y agua contaminada, malos hábitos higiénicos, áreas sobrepobladas y con saneamiento deficiente, es por ello que, a pesar de los avances significativos en saneamiento, suministro de agua potable y vigilancia altamente controlada de la cadena alimentaria, la transmisión de Salmonella spp. Sigue afectando a las comunidades, preferentemente a los niños, en todo el mundo. La presente investigación busca identificar los principales factores epidemiológicos que están asociados a la infección por salmonella tiphy, problema de salud que ha incrementado su incidencia en el país, caracterizando a los pacientes e identificando aquellos factores en los que se puede realizar intervenciones con el fin de disminuir los casos de esta infección, y de esta manera evitar las posibles complicaciones que conllevan un mayor riesgo para la salud de la población y un mayor gasto hospitalario. Los resultados se presentarán a los diversos servicios de medicina interna, para mejorar la detección, tratamiento y abordaje de esta enfermedad infecciosa.

Prevalence of malaria, typhoid and co-infection in District DIR (lower), Pakistan / Prevalência de malária, febre tifóide e co-infecção no distrito dir (inferior), Paquistão

Malaria and typhoid fever are among the most endemic diseases in the tropical and developing countries. Both diseases share similar transmission factor and often have the similar symptom. Based on this reason, much medical personnel try to cure both malaria and typhoid instantaneously in each case of suspected Salmonella infection and vice versa. The District Dir (Lower) is a favorable location for the protozoan nourishment and secondly mostly reported cases of malaria and typhoid co-infections. The main objective of this study was to find out the prevalence of malaria and typhoid co-infection in the District Dir (Lower), Khyber Pakhtunkhwa (KPK), Pakistan. The blood samples of 1889 patients were examined from September 2012 to April 2013, out of which 311 (16.46%) were positive for malaria and typhoid. Out of these infected, 117 (38%) sample was positive for malaria, 183 (58%) sample were positive for typhoid while co-infected cases were only 11 (4%). The current results indicate that this area is endemic for malaria and typhoid and co-infection. Its infection is prevalent in both the genders at varying degrees.

A malária e a febre tifóide estão entre as doenças mais endêmicas nos países tropicais e em desenvolvimento. Ambas as doenças compartilham fator de transmissão semelhante e muitas vezes têm sintomas semelhantes. Com base nessa razão, muitos profissionais da saúde tentam curar a malária e a febre tifóide ao mesmo tempo em cada caso de suspeita de infecção por Salmonella e vice-versa. O Distrito Dir (inferior) é um local favorável para a nutrição de protozoários e o segundo local com mais casos reportados de malária e co-infecções tifoides. O principal objetivo deste estudo foi descobrir a prevalência da malária e da co-infecção tifóide nos distritos de Dir (Lower), Khyber Pakhtunkhwa (KPK), Paquistão. As amostras de sangue de 1889 pacientes foram examinadas de setembro de 2012 a abril de 2013, das quais 311 (16,46%) foram positivas para malária e febre tifóide. Destes infectados, 117 (38%) amostras foram positivas para a malária, 183 (58%) amostras foram positivas para a febre tifóide, enquanto os casos co-infectados foram apenas 11 (4%). Os resultados atuais indicam que esta área é endêmica para malária e febre tifóide e co-infecção. Sua infecção é prevalente em ambos os sexos em diferentes graus.

Β-Glucan of candida albicans cell wall extract inhibits salmonella typhimurium colonization by potentiating cellular immunity (cd8 + and cd4 + t cells)

Abstract INTRODUCTION: Antimicrobial resistance has been reported in the drugs used for the treatment of typhoid fever. The immunomodulatory substance β-glucan can be used as an alternative therapy as it potentiates host immunity. The aims of this study are to observe the effect of Candida albicans cell wall (CCW) extract towards host immunity (TCD8+ and TCD4+ cells in spleen, intestinal sIgA) and its capacity to kill Salmonella in the intestine and liver of typhoid fever mice models. METHODS: Typhoid fever mice models were created by infecting mice with S. Typhimurium orally. Mice were divided into four groups: the Non-Infected, Infected, CCW (infected mice treated with 300 µg CCW extract/mouse once a day), and Ciprofloxacin groups (infected mice treated with 15 mg/kg BW ciprofloxacin twice a day). RESULTS: Secretory IgA (sIgA) concentrations of mice in the CCW group remained unchanged. However, their TCD4+ and TCD8+ cells increased substantially compared to those in the Non-Infected group. In the Ciprofloxacin group, sIgA concentrations increased markedly compared to those in the Non-Infected and CCW groups; TCD4+ and TCD8+ cells also increased significantly compared to those in the Infected Group, but not significant compared to those in the CCW group. Colonization of S. Typhimurium in the intestine and liver decreased significantly in the CCW and Ciprofloxacin groups compared to that in the Infected group, with the lowest reduction being found in the Ciprofloxacin group. CONCLUSIONS The inhibition of S. Typhimurium colonization by CCW is associated with the increase in TCD4+ and TCD8+ cells.

Protocolo del Sistema Nacional de Vigilancia Epidemiológica: enfermedades transmitidas por agua y alimentos. No. 03 / Protocol of the National Epidemiological Surveillance System: water and foodborne diseases. No. 03

Estos protocolos están dirigido a personal médico, paramédico y otros profesionales que realizan acciones gerenciales y operativas de vigilancia epidemiológica en los servicios de salud del país, y están divididos en varios tomos para dar a conocer y actualizar la identificación y medidas de control para diversos padecimientos a fin de continuar con el mejoramiento de las capacidades técnicas de los trabajadores de salud, que permita planificar la prestación de servicios con decisiones partiendo de un enfoque epidemiológico comprobado, para responder a los cambios de tendencias epidemiológicas y con ello contribuir al fortalecimiento de prácticas asertivas de la salud pública de nuestro país. Las enfermedades transmitidas por alimentos y agua (ETA´s), constituyen un importante problema de Salud Pública, debido a su magnitud, trascendencia, tendencia fluctuante y aumentos en su comportamiento durante el año, lo que ha significado etapas de emergencia, re emergencia, aparición de agentes nuevos con potencial epidémico y el incremento a la resistencia a los antimicrobianos con impacto negativo económico, en grupos de población. Las enfermedades transmitidas por alimentos y agua, se registran entre las primeras diez causas de morbilidad y mortalidad en el país; evento notificado como enfermedad diarreica, con frecuencia los servicios de salud tienen poca capacidad de respuesta para identificación del agente etiológico, limitándose a implementar medidas de control eficientes de las fuentes de infección o contaminación y divulgación de acciones dirigidas a minimizan los factores de riesgo identificados.

Aspectos relevantes sobre Salmonella sp en humanos / Relevant aspects of Salmonella sp in humans

Introducción: En el ámbito mundial, las infecciones por Salmonella sp poseen gran importancia por lo incapacitante de estas y los costos que implican para el sistema de salud de una nación, principalmente aquellas en vías de desarrollo donde persiste con mayor frecuencia este patógeno. Objetivo: Realizar una descripción de los principales aspectos relacionados con epidemiología, etiología, transmisión, patogénesis, diagnóstico y tratamiento de las especies de Salmonella que causan enfermedad en el humano. Métodos: Búsqueda de bibliográfica actual sobre Salmonella sp a través del uso de repositorios como Google Academics, Scielo y PubMed, utilizando las palabras de búsqueda: Salmonella, epidemiología, transmisión, patogénesis, diagnóstico, tratamiento. De 147 artículos consultados, 52 presentaron utilidad para el cumplimiento del objetivo de la revisión. : Las infecciones por Salmonella sp son un problema de salud en países en vías de desarrollo, siendo la resistencia bacteriana uno de los principales retos a enfrentar en los próximos años, al igual que como ocurre con otras infecciones bacterianas(AU)

Introduction: In the world, Salmonella sp infections have great importance due to their incapacitating nature and the costs associate for the health system in some nations, mainly those in development process where this pathogen persists frequently. Objective: To make a description of the main aspects related with the epidemiology, etiology, transmission, pathogenesis, diagnosis and treatment of Salmonella species that cause disease in humans. Method: Search current bibliography about Salmonella sp through the use of repositories such as Google Academics, Scielo and PubMed, and using the search words: Salmonella, epidemiology, transmission, pathogenesis, diagnosis, treatment. From 147 articles consulted, 52 were useful for the review objective. Conclusion: Salmonella sp infections are a health problem in developing countries, being bacterial resistance one of the main challenges to face in the coming years, as occurred with other bacterial infections(AU)

Algunas notas sobre el desarrollo histórico de la fiebre tifoidea en Chile / Some information regarding the historical development of typhoid fever in Chile

Resumen En el desarrollo histórico de la fiebre tifoidea en Chile, destaca su confusión con otras patologías infecciosas, especialmente con el tifus exantemático, problema que se resolvió mayormente con ocasión de la epidemia de 1918 de dicha enfermedad. Además se resalta la importancia del tratamiento con cloranfenicol, que significó una mejoría extraordinaria de las fiebres tifo-paratíficas, además de las acciones de salud pública y educación sanitaria, que permitieron prácticamente terminar con dichas patologías infecciosas en el país.

During the historical development of typhoid fever in Chile, its confusion with other infectious diseases is particularly noteworthy, especially with murine typhus, a problem that was mainly resolved during the 1918 epidemic. The importance of chloramphenicol treatment is also highlighted, which meant an enormous improvement in typhoid/paratyphoid fevers, in combination with public health and health education actions that allowed to almost eliminate these infectious diseases in our country.

Hemorragia pulmonar y síndrome de dificultad respiratoria aguda como complicaciones inusuales de la fiebre tifoidea / Pulmonary haemorrhage and acute respiratory distress syndrome as unusual complications of typhoid fever

La hemorragia pulmonar y el síndrome de dificultad respiratoria aguda son complicaciones infrecuentes de la fiebre tifoidea, y la endotoxemia producto de la sepsis es un factor causal común. Se describe a un paciente de sexo masculino, indio, joven, inmunocompetente, con hemorragia pulmonar, síndrome de dificultad respiratoria aguda y choque séptico en el curso de la fiebre tifoidea, con hemocultivos negativos y cepa de Salmonella typhi, aislada en coprocultivo, resistente a la ciprofloxacina. El paciente tuvo una respuesta satisfactoria al tratamiento convencional para el daño pulmonar con ventilación mecánica, el antibiótico por sensibilidad del antibiograma y la administración de hemoderivados.

Prevalencia de complicaciones en casos confirmados de fiebre tifoidea ingresados en el Hospital Nacional de Niños Benjamín Bloom durante el periodo de 2009 ­ 2012 / Prevalence of complications in confirmed cases of typhoid fever admitted to the Benjamín Bloom National Children's Hospital during the period 2009 ­ 2012

La Fiebre tifoidea es una enfermedad infecciosa de transmisión fecohídrica, cuyo agente etiológico bacteriano, pertenece al género Salmonella, ser. Typhi, S. ser. Paratyphis A, S. ser. Paratyphis B (Schottmuelleri) y S. ser.Paratyphis C (Hirschfeldii). Según la Organización Mundial de la Salud se produce unos 21 millones de caso por año en el mundo, de los cuales entre el 1- 4% presentan complicaciones médico ­ quirúrgicas importantes y en algunos casos suelen ser fatales. El presente trabajo nace como una guía de estudio que se realizó con el objetivo principal de determinar la Prevalencia de las complicaciones en casos confirmados de fiebre tifoidea ingresados en el Hospital Nacional De Niños Benjamín Bloom durante el periodo de 2009 a 2012. Se realizó un estudio descriptivo, retrospectivo y transversal a través de la revisión de expedientes clínicos de los pacientes que cumplieron con los criterios de inclusión previamente aprobado por el comité de ética del Hospital de Niños Benjamín Bloom. Entre los años 2009 a 2012 egresaron 87 pacientes con diagnóstico de fiebre tifoidea de los cuales solo 47 cumplen con los criterios de inclusión del estudio. El 38.2% (18) de los pacientes estudiados presentaron una o más complicaciones durante los años 2009 a 2012. La aparición de complicaciones fue tan temprano como a la 1a semana y tardía como los 2 meses, además, se reportó un paciente fallecido que representa el 4.54% de los pacientes complicados por la enfermedad y el 2.1%de los pacientes estudiados. La edad escolar (de 5 a 10 años) es la más afectada sin predilección de género y el diagnóstico clínico es el primer método utilizado ayudado por el hemocultivo como prueba diagnóstica más utilizada

Fiebre, ictericia y hepatitis: no siempre es infección viral / Fever, Jaundice and Hepatitis: It is not always a Viral Infection

La fiebre tifoidea es una infección sistémica causada por Salmonella entérica serotipo tiphy a través de la ingesta de alimentos contaminados (fecal-oral). Es un problema de salud pública, especialmente en países en vías de desarrollo, debido a su alta prevalencia, relacionada con deficiencias sanitarias. En pacientes con fiebre tifoidea, la hepatitis se presenta en 1% a 26% de los pacientes y se debe sospechar cuando coexisten ictericia, fiebre y hepatitis. No obstante ser difícil de distinguir de las hepatitis por virus hepatotrópicos, la clave para el diagnóstico es que, en estas infecciones virales, la fiebre desaparece cuando el paciente presenta ictericia. El diagnóstico final de la entidad necesita el aislamiento de la Salmonella a través de coprocultivos y hemocultivos, especialmente de la médula ósea, que es el sitio con mayor rendimiento para el diagnóstico.

Typhoid fever is a systemic infection caused by Salmonella enterica serotype Typhi as the result of ingestion of contaminated food (fecal-oral). It is a public health problem, especially in developing countries where it is very prevalent and where it is related to poor sanitation. Hepatitis occurs in 1% to 26% of patients with typhoid, so typhoid fever should be suspected when jaundice, fever and hepatitis coexist. Nevertheless, it is difficult to distinguish it from hepatotropic hepatitis virus. The key to diagnosis is that fever disappears in these viral infections while the patient still has jaundice. Final diagnosis requires the isolation of salmonella through blood and/or cultures, but most importantly cultures of bone marrow which have the highest diagnostic yield.

Increased risk of depression in patients with rheumatoid arthritis: a seven-year population-based cohort study

OBJECTIVE: Rheumatoid arthritis (RA) is a costly and crippling autoimmune disease that can lead to the development of depression, contributing to suboptimal clinical outcomes. However, no longitudinal studies have identified an association between rheumatoid arthritis and subsequent depression. This study aimed to investigate the incidence and risk factors of depression among RA patients in Taiwan. METHODS: Using Taiwan's National Health Insurance Research Database, we identified 3,698 newly diagnosed RA patients aged 18 years or older, together with 7,396 subjects without RA matched by sex, age and index date, between 2000 and 2004. The incidence of depression and the risk factors among RA cases were evaluated using Cox proportional-hazard regression. RESULTS: The incidence of depression was 1.74-fold greater in the RA cohort than in the non-RA cohort (11.80 versus 6.89 per 1,000 person-years; p<0.01). Multivariate analysis showed that RA subjects who were female, were older, or had comorbidities such as stroke, chronic kidney disease, or cancer had a significantly greater risk of depression compared with those without these conditions. CONCLUSION: This population-based cohort study showed a strong relationship between RA and a subsequent risk of depression. The findings could be beneficial to healthcare providers for identifying individuals with a higher predisposition for depression, thereby possibly facilitating the provision of an appropriate rehabilitation intervention after RA onset to support the patient's adaptation. .

Rapid detection of Salmonella Typhi by loop-mediated isothermal amplification (LAMP) method

An in-house loop-mediated isothermal amplification (LAMP) reaction was established and evaluated for sensitivity and specificity in detecting the presence of Salmonella Typhi (S. Typhi) isolates from Kelantan, Malaysia. Three sets of primers consisting of two outer and 4 inner were designed based on locus STBHUCCB_38510 of chaperone PapD of S. Typhi genes. The reaction was optimised using genomic DNA of S. Typhi ATCC7251 as the template. The products were visualised directly by colour changes of the reaction. Positive results were indicated by green fluorescence and negative by orange colour. The test was further evaluated for specificity, sensitivity and application on field samples. The results were compared with those obtained by gold standard culture method and Polymerase Chain Reaction (PCR). This method was highly specific and -10 times more sensitive in detecting S. Typhi compared to the optimised conventional polymerase chain reaction (PCR) method.

Síndrome febril prolongado: un desafío para el infectólogo pediatra / Fever of unknown origin: a challenge for the pediatric infectious diseases specialist

Introduction: Prolonged febrile syndrome (PFS) is defined as fever 7-10 days, with initial study does not allow etiologic diagnosis. Objective: To describe the main causes of the PFS and its temporal behavior in Pediatric Infectious Diseases Unit Outpatient Care of Complejo Asistencial Dr. Sótero del Río (CASR). Patients and Methods: A descriptive, prospective study between january 2007-december 2012, about 153 patients from 6 weeks to 14 years 11 months old, diagnosed with PFS, tab completing clinical and laboratory monitoring. Results: etiology was obtained in 67.9%, the causes were infection (88.4%), neoplasms (4.8%), rheumatological (4.8%) and Kawasaki disease (2.8%). The most important infectious causes were enteric fevers (typhoid and paratyphoid) (18.4%), urinary tract infection (11.9%), Bartonella henselae infections and adenovirus (8.7%) each one and Epstein Barr virus (7.6%). Ninety eight percent of patients had complete resolution, 60.7% did not require hospitalization and mortality was 0%. Discussion: As in previous pediatric clinical series the infections were the most frequent causes. Enteric fever persists as principal cause, however, the epidemiological evidence is oscillating in time endorsing the local statistics can count over the years to improve the diagnostic and therapeutic approach.

Introducción: El síndrome febril prolongado (SFP) se define como fiebre entre 7-10 días, con estudio inicial que no permite un diagnóstico etiológico. Objetivo: Describir las principales etiologías del SFP y su comportamiento temporal en la unidad de infectología pediátrica ambulatoria del Complejo Asistencial Dr. Sótero del Río (CASR). Pacientes y Método: Estudio descriptivo, prospectivo, entre enero de 2007-diciembre de 2012. Análisis de 153 pacientes entre 6 semanas y 14 años 11 meses de edad, con diagnóstico de SFP, que completaron ficha de seguimiento clínico-laboratorial. Resultados: Se obtuvo diagnóstico etiológico en 67,9%, las causas fueron: infecciones (88,4%), neoplasias (4,8%), reumatológicas (4,8%) y enfermedad de Kawasaki (2,8%). Las causas infecciosas más importantes fueron: fiebres entéricas (tifoidea y paratifoidea) (18,4%), infección del tracto urinario (11,9%), enfermedades por Bartonella henselae y adenovirus (8,7%) cada uno y virus de Epstein Barr (7,6%). El 98% de los pacientes tuvo resolución completa, 60,7% no requirió hospitalización y no se registraron decesos. Discusión: Como en las series clínicas antes publicadas, las infecciones fueron la causa más frecuente de SFP. La fiebre entérica persiste como causa principal; sin embargo, se evidencia una situación epidemiológica oscilante en el tiempo justificando la necesidad de contar con estadísticas locales a lo largo de los años para mejorar el enfoque diagnóstico y terapéutico.

Variabilidade climática, vulnerabilidade ambiental e saúde: os níveis dorio Negro e as doenças relacionadas à água em Manaus / Climate variability, vulnerability and environmental health: levels of Negro river and water-related diseases in Manaus

Manaus apresenta peculiaridades em relação às mudanças ambientais e climáticas. A sazonalidade das chuvas, níveis dos rios, produção de alimentos, pesca e condições de transporte condicionam a economia regional e influem sobre a vida na cidade. O nível da água do Rio Negro tem sido um regulador da dinâmica econômica e social da cidade, desde sua fundação. A persistência de casas de madeira construídas sobre palafitas é um exemplo de adaptação da população local à variabilidade climática. A altura das casas, pontes e trapiches sobre estacas revela uma conformação dos habitantes locais a variações esperadas do regime dos rios, ao mesmo tempo em que impõe um limite aceitável, além do qual torna-se inviável a moradia e as atividades econômicas, e consequentemente geram agravos a saúde. Nos últimos anos, o regime de cheias e vazantes tem superado as marcas históricas registradas. O objetivo desse trabalho foi analisar o comportamento hidrológico da região e relacionar seu impacto com agravos à saúde. Foi realizado um estudo de séries temporais que analisou as decomposições das séries para observação da tendência e sazonalidade. Na análise estatística utilizaram-se modelos aditivos generalizados (GAM). Os modelos multivariados também contemplaram variáveis metrológicas e Índices de Oscilação Niño (ONI). Com base nos resultados obtidos pelos modelos finais foram construídos cenários segundo a variação dos níveis do rio Negro na região de Manaus. Os resultados apontam uma associação entre eventos hidrológicos extremos e a incidência de algumas doenças na cidade. Por exemplo, cotas do rio acima de 28 metros em períodos de chuva apresentaram associação positiva com as notificações de casos de leptospirose. Os casos de febre tifoide apresentaram associação com defasagem de um mês em relação ao nível do rio Negro, temperatura máxima e índice ONI. Os casos de malária apresentaram associação com defasagem de 2 meses com a chuva e cotas acima 27,5 metros durante o período de subida do nível do rio Negro. Os resultados obtidos apontam para limiares do rio Negro na região de Manaus que podem direcionar intervenções, monitoramento, planejamento e medidas de adaptação de saúde no município.

Manaus has important specificities in the context of environmental and climate changes. Rainfall, the level of rivers, food production, the dynamic of fisheries, and transportation have a marked seasonal pattern, influencing regional economy and urban life. Rio Negro’s water level has modulated the economic and social dynamics of the city since its inception. The persistence of wood houses built on stilts is an example of how the local population has adapted to climate variability over the years. The high height of the houses, the fact bridges and piers have been built on high wooden pillars document the way local inhabitants have did their best to face the challenges posed by the rivers’ variable regimens. Despite all such flexibility, pronounced variations may exceed inhabitants’ buffering initiatives, beyond a point housing and economic activities may be no longer viable. In consequence, social and health hazards may emerge. In recent years, the cycle of ebbs and flows has exceeded historical trademarks. This study analyzed the hydrology of the region and assessed its impact on health of the local population. Time series were fitted in order to discern their overall trends and seasonal patterns. Statistical analyses used generalized additive models (GAM). Multivariate models incorporated metrological data and the Niño Oscillation Index (ONI). Models’ findings help to build scenarios focusing on the varying levels of the Rio Negro and their impact on the Manaus region. The results highlighted the association between extreme hydrological events and the incidence of different diseases in the city of Manaus.

For example, when the watermark is located 28 meters above the river’s reference level, during the rainy season, cases of leptospirosis to the surveillance systems have increased. Cases of typhoid fever were found to be associated with a one-month lagged variation of Rio Negro, maximum temperatures and variations of the ONI index. Malaria cases were associated with a two-months lagged variation of rain and a watermark 27.5 meters above Rio Negro’s reference level. Results helped to define the thresholds of Rio Negro in the Manaus region that may ask for targeted interventions, monitoring, planning, as well as to initiatives aiming to tailor health preservation to the actual conditions prevailing in the municipality.

La historia clínica de Wolfang Amadeus Mozart / Medical record of Wolfgang Amadeus Mozart

Resumen Las hipótesis en torno a las patologías que tuvo Wolfang Amadeus Mozart (1756-1791) en su vida, la enfermedad final y la causa de su muerte han generado alrededor de 160 diagnósticos diferentes. En este trabajo se analizan las causas más pertinentes desde el punto de vista de la medicina interna y se plantea que es improbable que fuese un enfermo crónico, o un paciente psiquiátrico, o tuviese un síndrome genético, o hubiese sido envenenado. Se concluye que en los dos últimos meses de su existencia presentó una posible hipertensión arterial sistémica severa y luego desarrolló un síndrome nefrótico o nefrótico-nefrítico causado, quizá, por una fiebre tifoidea y aparecieron las complicaciones de una insuficiencia renal aguda en sus últimos días y un accidente cerebrovascular hemorrágico final. (Acta Med Colomb 2013; 38: 244-254).

Abstract The hypotheses in regard to the pathologies that had Wolfgang Amadeus Mozart (1756-1791) in his life, the final illness and the cause of his death have generated about 160 different diagnoses. This paper analyzes the most relevant causes from the point of view of internal medicine and suggests that it is unlikely that he were a chronically ill patient or a mental patient, or that he had a genetic syndrome or had been poisoned. We conclude that in the last two months of its existence he had a possible severe systemic arterial hypertension and then developed a nephrotic syndrome or nephrotic - nephritic caused perhaps by typhoid fever, and that in his last days the complications of an acute renal failure appeared and had a final hemorrhagic cerebrovascular accident. (Acta Med Colomb 2013; 38: 244-254).