Introduction. Arboviruses, such as dengue and chikungunya, have caused multiple epidemics in the Americas. They are transmitted through mosquito bites; Aedes aegypti is their main vector.
View Article and Find Full Text PDFSome bands in the frequency spectrum have become overloaded and others underutilized due to the considerable increase in demand and user allocation policy. Cognitive radio applies detection techniques to dynamically allocate unlicensed users. Cooperative spectrum sensing is currently showing promising results.
View Article and Find Full Text PDFGuillain-Barré syndrome is an entity of diverse etiology, characterized by acute, symmetric, ascending and progressive muscle weakness, being one of the most frequent acquired polyneuropathies in childhood. Neuropathies produced by heavy metals, mercury and lead, and metalloids, such as arsenic, organophosphorus pesticides and carbon tetrachloride, should be considered among the differential diagnoses. We present a 14-year-old patient with a presumptive diagnosis of Guillain-Barré syndrome without response to conventional treatment with gamma globulin.
View Article and Find Full Text PDFIntroduction: Due to the heavy industrialization of the Autonomous City of Buenos Aires and Greater Buenos Aires, the population may have become exposed to metals. To assess the level of exposure to chromium and mercury in children, it is critical to have local reference values (RVs). Our objective was to determine pediatric RV s for chromium and mercury in a single urine sample.
View Article and Find Full Text PDFMycoplasma pneumoniae (Mp) is responsible for 30% of the respiratory manifestations of the general population. Pneumonia occupies the first place within this group. Among the extra-respiratory forms (40%), the neurological ones are the most frequent.
View Article and Find Full Text PDFArch Argent Pediatr
December 2014
Children environmental health is considered by The World Health Organization as one of the main challenges of Public Health during the Century XXI. They promote the development of programs that allow approaching, disclosure or mitigation of the impact of polluting agents on health at every level of pediatric attention. The Children Hospital "Prof.
View Article and Find Full Text PDFBloody discharge from the nipple (thelorrhagia) is a rare symptom in childhood and is a cause of great concern due to the mistaken association with carcinoma in adults. However, in children thelorrhagia is due to benign mammary duct ectasia in the majority of cases. Up to date, only isolated case reports or case series have been published and, although different theories have been postulated, no definite etiology has been identified.
View Article and Find Full Text PDFMercury (Hg) is currently considered a global pollutant. Mercury is a significant environmental toxin and has a huge impact on human health, causing irreversible damage to the central nervous system, especially in the most vulnerable stages of life. Medical centers contribute to 4-5% of the total mercury present in drainage waters.
View Article and Find Full Text PDFArch Argent Pediatr
October 2009
Arsenic (As) is a semimetal that is widely distributed in nature, in water and soil. In Argentine, the contamination of both waterways and groundwater represents the main environmental problem caused by this element. Chronic As poisoning is known as Chronic endemic regional hydroarsenicism (C.
View Article and Find Full Text PDFWe evaluated risk factors for sporadic Shiga toxin-producing Escherichia coli (STEC) infection among children in Argentina. We conducted a prospective case-control study in 2 sites and enrolled 150 case-patients and 299 controls. The median age of case-patients was 1.
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