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Simple idea to dramatically improve dengue vaccinations

sly at different locations on the body ?could help overcome immunodominance by taking advantage of the relative isolation of lymph nodes throughout the body. Each person has hundreds of lymph nodes. Deem believes vaccinations at four different sites, served by four different lymph nodes, could allow the body to simultaneously develop immune responses against all four versions of Dengue.

"The literature about immunodominance is new and growing," Deem said. "Ours is the first model that can predict immunodominance, and when we compare our results with experimental data from Dengue vaccination trials, they match quite closely. There may be other factors at work, but we appear to be explaining a significant portion of the effect that occurs in Dengue immunodominance."

Immunodominance is also a problem for researchers working on vaccines for both the AIDS virus and cancer, each of which mutate quickly and occur in multiple strains.


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Source:Rice University


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