نتایج جستجو برای: endemicity
تعداد نتایج: 2164 فیلتر نتایج به سال:
Hepatitis B is one of the most common infectious diseases globally. It has been estimated that there are 350 million chronic hepatitis B virus (HBV) carriers worldwide. The prevalence of chronic HBV infection varies geographically, from high (>8%), intermediate (2-7%) to low (<2%) prevalence. HBeAg-negative chronic hepatitis B (e-CHB) and occult HBV infection are two special clinical entities, ...
Coccidioidomycosis is a common fungal infection acquired in the southwestern United States. This is the first study in over 2 decades to determine the seroincidence of Coccidioides immitis infections among U.S. military members performing training exercises in an area of endemicity. Only 8% of participants were aware of coccidioidomycosis, despite the majority having visited or lived previously...
Oceanic islands are recognized evolutionary hotspots for terrestrial organisms, but little is known about their impact on marine organisms’ evolution and biogeography. The volcanic archipelagos of Macaronesia occupy a vast complex region in the Atlantic Ocean may be particularly suitable to investigate island In this study, we used mitochondrial DNA sequences (cytochrome c oxidase subunit I bar...
Worldwide Schistosomiasis mansoni continues to be a serious public health problem. Over the past decades, control programmes have made remarkable progress in reducing S. mansoni infections to a relatively low level in Brazil and African countries. Endemic regions are currently circumscribed in certain core areas where reinfection and repeated chemotherapy are frequent and, consequently, are rel...
Chagas disease is now an active disease in the urban centers of countries of nonendemicity and endemicity because of congenital and blood and/or organ transplantation transmissions and the reactivation of the chronic disease in smaller scale than vectorial transmission, reported as controlled in countries of endemicity. Oral transmission of Chagas disease has emerged in unpredictable situations...
We report here the evaluation of the potential of a serologic test to determine the endemicity of onchocercal infection in hyper, meso, and hypoendemic communities by the detection of antibodies to a cocktail of recombinant antigens. Parasitologic parameters of infection prevalence and intensity were compared with serologic results. Infection prevalence by serology was consistently but not sign...
The pork tapeworm, Taenia solium, causes an important economic and health burden, mainly in rural or marginalized communities of sub-Saharan Africa, Asia, and Latin-America. Although improved pig rearing conditions seem to have eliminated the parasite in most Western European countries, little is known about the true endemicity status of T. solium throughout Europe. Three recent reviews indicat...
The transmission dynamics of tuberculosis involves complex interactions of socio-economic and, possibly, microbiological factors. We describe an analytical framework to infer factors of epidemic success based on the joint analysis of epidemiological, clinical and pathogen genetic data. We derive isolate-specific, genetic distance-based estimates of epidemic success, and we represent success-rel...
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