| pathogens and host dna in ixodes ricinus nymphal ticks from a german forest. | unfed nymphs of ixodes ricinus were collected from vegetation in a forest on the outskirts of berlin, germany and were analyzed for host and pathogen dna. pathogens were detected in 47% of the ticks. borrelia afzelii was the commonest pathogen detected, followed by rickettsia helvetica. other pathogens included b. valaisiana, b. garinii, b. burgdorferi sensu stricto, anaplasma phagocytophilum, and a relapsing fever-like borrelia. most of the host dna detected was of rodent origin and was associa ... | 2006 | 17187573 |