Vaccines

New vaccines study findings have been published by scientists at Emory University, Emory Vaccine Center

Published in Vaccine Weekly, June 17th, 2009

According to a study from the United States, "During some persistent viral infections, virus-specific T-cell responses wane due to the antigen-specific deletion or functional inactivation (i.e., exhaustion) of responding CD8 T cells. T-cell exhaustion often correlates with high viral load and is associated with the expression of the inhibitory receptor PD-1."

"In other infections, functional T cells are observed despite high levels of pathogen persistence. The reasons for these different T-cell fates during chronic viral infections are not clear. Here, we tracked the fate of virus-specific CD8 T cells in lymphocytic choriomeningitis virus (LCMV)-infected mice during...

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Source: Vaccine Weekly (2009-06-17)

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