Title : Recent advances in theserodiagnosis of tick-borne borreliosis
Abstract:
Spirochete bacteria of the genus Borrelia termed Lyme disease Borreliae (LDB) cause Lyme disease (LD) while other related Borrelia species termed relapsing fever Borreliae (RFB) cause tick-borne relapsing fever (TBRF). LD is widely prevalent in the USA. Because symptoms are mainly non-specific, the clinical diagnosis of LD relies mainly on serodiagnosis that until recently relied on a cumbersome two-tier test procedure. We recently described immunoblot tests (IBs) with recombinant proteins from LDB and RFB for the serodiagnosis and differentiation of LD and TBRF, which that showed many suspected LD patients to have TBRF in different continents. We have also developed a US FDA-approved one-step IB test for IgM and IgG antibodies in LD. Both findings significantly advance the serodiagnosis of LD and TBRF.