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Populations of Apis mellifera and Apis cerana in China and Vietnam were surveyed in order to study possible pathogen spill-over from European to Asian honeybees. This is the first survey of the prevalence of honeybee pathogens in apiaries in Vietnam, including pathogen prevalence in wild A. cerana colonies never in contact with A. mellifera. The bee samples(More)
Using a mouse mutagenesis screen, we have identified CD83 as being critical for the development of CD4(+) T cells and for their function postactivation. CD11c(+) dendritic cells develop and function normally in mice with a mutated CD83 gene but CD4(+) T cell development is substantially reduced. Additionally, we now show that those CD4(+) cells that develop(More)
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