Reinfection of vervet monkeys (Cercopithecus aethiops) with Borrelia hermsii.

: Two of 4 untreated vervet monkeys infected with Borrelia hermsii survived and were resistant to reinfection for at least 1 year. Seven of 9 vervets receiving tetracycline could be reinfected after 12 to 36 weeks. Immobilizine could be demonstrated for a shorter time in treated than in untreated vervets.