نتایج جستجو برای: intermediate host
تعداد نتایج: 339629 فیلتر نتایج به سال:
Eliminating human parasitic disease often requires interrupting complex transmission pathways. Even when drugs to treat people are available, disease control can be difficult if the parasite can persist in nonhuman hosts. Here, we show that restoration of a natural predator of a parasite's intermediate hosts may enhance drug-based schistosomiasis control. Our study site was the Senegal River Ba...
Freshwater snails of the genus Biomphalaria are important intermediate snail hosts for the widespread transmission of schistosomiasis in humans. This chronic and debilitating disease remains one of the most intractable public health concerns in 74 developing countries, infecting more than 200 million people. Prevalence of schistosomiasis is difficult to estimate, but according to the World Heal...
Larval helminths exploit the physiology of their intermediate hosts: first, as a resource for energy and space and second by altering the immune system activity to ensure their survival. Whereas the growth pattern under parasite competition has been investigated, the effect of multiple infections on the level of parasite-induced immunodepression in a trophically transmitted helminth has been ne...
Complexes of cryptic species are rapidly being discovered in many parasite taxa, including trematodes. However, after they are found, cryptic species are rarely distinguished from each other with respect to key ecological or life history traits. In this study, we applied an integrative taxonomic approach to the discovery of cryptic species within Stegodexamene anguillae, a facultatively progene...
Much remains unknown regarding speciation. Host-pathogen interactions are a major driving force for diversification, but the genomic basis for speciation and host shifting remains unclear. The fungal genus Metarhizium contains species ranging from specialists with very narrow host ranges to generalists that attack a wide range of insects. By genomic analyses of seven species, we demonstrated th...
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