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Dual action provides an extra layer of protection against borrelia burgdorferi infection in dogs. Combines two strains of B. burgdorferi for optimal effectiveness.

  • Strain 1 is a B. burgdorferi traditional isolate that stimulates production of borreliacidal antibodies to outer surface protein A (OspA)
  • Strain 2 is an unique isolate that stimulates production of borreliacidal antibodies to outer surface protein C (OspC)