نتایج جستجو برای: schistosome cercaria
تعداد نتایج: 2003 فیلتر نتایج به سال:
BACKGROUND Schistosomiasis is a debilitating neglected tropical disease that infects over 200 million people worldwide. To combat this disease, in 2012, the World Health Organization announced a goal of reducing and eliminating transmission of schistosomes. Current control focuses primarily on mass drug administration (MDA). Therefore, we monitored transmission of Schistosoma mansoni via fecal ...
Schistosoma genomes provide a comprehensive resource for identifying the molecular processes that shape parasite evolution and for discovering novel chemotherapeutic or immunoprophylactic targets. Here, we demonstrate how intragenus and intergenus comparative genomics can be used to drive these investigations forward, illustrate the advantages and limitations of these approaches and review how ...
Trematodes have complex life cycles with infective stages in multiple hosts including species of conservation concern. We conducted a field survey of seven ponds in Teton County, Wyoming for trematode prevalence and richness. We collected snails from each location and determined trematode prevalence by shedding snails and determined trematode richness by dissection of infected snails. At each l...
Fasciolosis is a parasitic helminthes disease caused by Fasciola gigantica. The different larval stage (sporocyst, redia and cercaria) are found in intermediate host snail Lymnaea acuminata. In the present study it has been tried to kill the F. gigantica larvae in vitro/ in vivo condition by the use of ferulic acid there is no mortality of snails. Mortality of larvae in in vivo and in vitro con...
The distribution of schistosome worms among their human hosts is not random but aggregated. The consequences of introducing aggregation into models of schistosomiasis transmission, especially that of Macdonald, are explored. There are two possibilities for aggregation, with the sexes distributed either independently or together. Both have profound though differing effects on the breakpoint conc...
A novel method for the isolation of schistosome eggs and miracidia from livers of mice infected with Schistosoma japonicum or S. mansoni is described. The method employed collagenase B to degrade the interstitial matrix of mouse liver tissue, after which the schistosome eggs were separated from the liver cells by 2 single-step density centrifugations through Percoll. Using this procedure suffic...
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