Volume 94, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Relapsing fever borreliae, produced by ectoparasite-borne species, cause mild to deadly bacteremia and miscarriage. In the perspective of developing inexpensive assays for the rapid detection of relapsing fever borreliae, we produced 12 monoclonal antibodies (MAbs) against and characterized the two exhibiting the highest titers. P3A10 MAb reacts with the 35.6-kDa flagellin B (flaB) of while P6D9 MAb recognizes a 35.1-kDa variable-like protein (Vlp) in and a 35.2-kDa Vlp in . Indirect immunofluorescence assay incorporating relapsing fever and Lyme group borreliae and 11 blood-borne organisms responsible for fever in West Africa confirmed the reactivity of these two MAbs. Combining these two MAbs in indirect immunofluorescence assays detected relapsing fever borreliae including in ticks and the blood of febrile Senegalese patients. Both antibodies could be incorporated into inexpensive and stable formats suited for the rapid point-of-care diagnosis of relapsing fever. These first-ever MAbs directed against African relapsing fever borreliae are available for the scientific community to promote research in this neglected field.


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  • Received : 15 Jun 2015
  • Accepted : 02 Oct 2015

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