Chimera proteins including: (i) at least one sequence of a DbpA protein of a Borrelia species selected from B. afzelii, B. burgdorferi sensu stricto and B. garinii, and (ii) at least one sequence of an OspC protein of a Borrelia species selected from B. afzelii, B. burgdorferi sensu stricto and B. garinii. Also, a method and a kit for the in vitro diagnosis of Lyme borreliosis using said proteins.
