| prevalence and infection intensity of nosema in honey bee (apis mellifera l.) colonies in virginia. | nosema ceranae is a recently described pathogen of apis mellifera and apis cerana. relatively little is known about the distribution or prevalence of n. ceranae in the united states. to determine the prevalence and potential impact of this new pathogen on honey bee colonies in virginia, over 300 hives were sampled across the state. the samples were analyzed microscopically for nosema spores and for the presence of the pathogen using real-time pcr. our studies indicate that n. ceranae is the domi ... | 2011 | 21345338 |