Figure 3. Tetravalent and octavalent OspC chimeric vaccinogens.
Tetravalent OspC chimeric vaccinogen contains the helix 5 or loop 5 of OspC variants from types A, B, K, and D, while octavalent OspC chimeric vaccinogen contains helix or loop 5 of OspC from types E, N, I, C, A, B, K, and D.