Examples of serological reactivity for mice (A) after exposure to B. miyamotoi-infected I. scapularis nymphs for mouse E19 testing positive for B. miyamotoi DNA in its blood and (B) before (left strip) and after (right strip) exposure to B. miyamotoi-infected I. scapularis nymphs for mice (C94, D10, D22, D24, D81, D82, D96, E15, E27, E32) testing negative for B. miyamotoi DNA in their blood.