Dengue en el primer año de la vida / Dengue in the first year of life

Introducción: El dengue es considerada la más importante de todas las arbovirosis por su gran carga de enfermedad e implicaciones sociales. Es una enfermedad infecciosa causada por cualquiera de los cuatro serotipos del complejo dengue, que se trasmite al hombre a través de la picada de un mosquito del género Aedes. Objetivo: Caracterizar las manifestaciones clínicas en lactantes con dengue confirmado. Métodos: Se realizó un estudio observacional, descriptivo y retrospectivo de las manifestaciones clínicas de150 lactantes con diagnóstico de dengue confirmado por serología que fueron hospitalizados en el Hospital Materno Infantil Dr. Ángel Arturo Aballí en el período de julio- septiembre del año 2014. Resultados: Los lactantes entre 7 y 12 meses de edad fueron los más afectados (66,8 por ciento), con predominio del sexo femenino (54,0 por ciento). Las principales manifestaciones clínicas fueron: fiebre, manifestaciones respiratorias altas y exantema. La aparición de los signos de alarma coincidió con la defervescencia de la fiebre en 14 niños (9,3 por ciento) y los vómitos frecuentes y la letargia o irritabilidad fueron los síntomas más reiterados. Un solo paciente (0,7 por ciento) presentó cuadro clínico de choque. Conclusiones: Durante el primer año de vida, la enfermedad dengue puede presentarse de modo particular y semejar cualquier otra infección viral. El criterio epidemiológico tiene suma importancia, así como la presencia de fiebre, exantema y las manifestaciones respiratorias que no siempre se asocian al dengue en otras edades(AU)

Introduction: Dengue is considered the most important of all arboviruses because of its high burden of disease and social implications. It is an infectious disease caused by any of the four serotypes of the dengue complex, which is transmitted to the human beings through the bite of a mosquito of Aedes genus. Objective: Characterize the clinical manifestations in infants with confirmed dengue. Methods: An observational, descriptive and retrospective study of the clinical manifestations of 150 infants with a diagnosis of dengue confirmed by serology who were hospitalized at Dr. Ángel Arturo Aballí Mother and Child Hospital in the period July-September 2014 was conducted. Results: Infants between 7 and 12 months of age were the most affected (66.8 percent), with a predominance of females (54.0 percent). The main clinical manifestations were: fever, upper respiratory tract manifestations and rash. The appearance of the warning signs coincided with the defervescence of fever in 14 children (9.3 percent) and frequent vomiting and lethargy or irritability were the most repeated symptoms. Just one patient (0.7 percent) presented a clinical picture of shock. Conclusions: During the first year of life, dengue disease can occur in a particular way and resemble any other viral infection. The epidemiological criterion is extremely important, as well as the presence of fever, rash and respiratory manifestations that are not always associated with dengue at other ages(AU)

Neglected infections of poverty in Texas and the rest of the United States: management and treatment options.

In the poorest regions of the United States, especially along the Gulf Coast and in South Texas, are a group of endemic parasitic and related infections known as the neglected infections of poverty. Such infections are characterized by their chronicity, disabling features, and disproportionate impact on the estimated 46 million people who live below the U.S. poverty line. Today more Americans live in poverty than ever before in the half-century that the Census Bureau has been recording poverty rates. In association with that poverty, a group of major neglected infections of poverty have emerged in the United States. Here we describe the major neglected infections of poverty in the United States, with a brief overview of their significant epidemiological features, their links with poverty, and our approaches to their diagnosis, management, and treatment.

An immunopathologic component in experimental togavirus encephalitis.

The effects of immune manipulation upon survival and histopathology in two experimental group B togavirus encephalitides were studied in inbred mice. The median survival time 8 days after intracerebral injection of Langat virus increased to 10 days with an immunosuppressive course of cyclophosphamide, with concomitant reduction in the inflammatory response. Adoptive immunization with immune lymphoid cells or serum also tended to prolong Langat virus survival while increasing inflammation. Survival following intracerebral West Nile virus (7 days) was unaffected by immunosuppression or adoptive transfer, although suppression was associated with less severe CNS lesions, and immune serum with less necrosis. These findings indicate that the immune response may be both protective and pathology-inducing in some togarvirus encephalitides. The differences in host response to these two related agents suggest caution in generalizing about the role of the immune response in viral infections.