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BACKGROUND Globally, more than 10 million people are infected with Trypanosoma cruzi, which causes about 20 000 annual deaths. Although Chagas disease is endemic to certain regions of Latin America, migratory flows have enabled its expansion into areas where it was previously unknown. Economic, social and cultural factors play a significant role in its(More)
IP multicast was initially designed for stationary members and does not consider extra requirements for mobile parties. In fact, to deploy IP multicast, two essential components are required: a membership management protocol to manage the join/leave process, and a routing protocol to build the multicast delivery tree. Currently, multicast membership(More)
BACKGROUND Cysticercosis is caused by the invasion of human or pig tissues by the metacestode larval stage of Taenia solium. In Europe, the disease was endemic in the past but the autochthonous natural life cycle of the parasite is currently completed very rarely. Recently, imported cases have increased in parallel to the increased number of migrations and(More)
BACKGROUND Strongyloidiasis is frequently under diagnosed since many infections remain asymptomatic and conventional diagnostic tests based on parasitological examination are not sufficiently sensitive. Serology is useful but is still only available in reference laboratories. The need for improved diagnostic tests in terms of sensitivity and specificity is(More)
Strongyloidiasis remains an underestimated public health problem, just as it was at the dawn of last century. In 1901, Professor William Sydney Thayer published a review, ''On the Occurrence of Strongyloides intestinalis in the United States,'' concluding: ''…one may be justified in emphasizing the following points: 1. ''Diarrhoea associated with the(More)
BACKGROUND The diagnosis of Strongyloides stercoralis (S. stercoralis) infection is hampered by the suboptimal sensitivity of fecal-based tests. Serological methods are believed to be more sensitive, although assessing their accuracy is difficult because of the lack of sensitivity of a fecal-based reference ("gold") standard. METHODS The sensitivity and(More)
BACKGROUND Strongyloidiasis is commonly a clinically unapparent, chronic infection, but immuno suppressed subjects can develop fatal disease. We carried out a review of literature on hyperinfection syndrome (HS) and disseminated strongyloidiasis (DS), in order to describe the most challenging aspects of severe strongyloidiasis. METHODS We conducted a(More)
BACKGROUND International travel and migration have been related with an increase of imported malaria cases. There has been considerable immigration to Barcelona from low-income countries (LIC) in recent years. The objective is to describe the epidemiology and to determine the trends of the disease in Barcelona. METHODS Analysis of the cases notified among(More)
This paper presents a novel framework for network security, and provides a complete solution to integrated security policies, which meets the objectives of an organisation, and also an automated verification process. The framework uses a security compiler, which converts high-level abstract definitions of the objectives of an organisation, and its security(More)