Table 2: Positive Serology and Positive LTT for Co-infections (%) in Patients with Chronic Lyme Disease, N = 108

Pathogen N Positive Serology (%) Positive LTT (%)
Mycoplasma pneumoniae 36 36 Nd
Chlamydophila pneumoniae 66 62 66
Chlamydia trachomatis 100 5 100
Yersinia enterocolitica 58 58 50
Bartonella henselae 78 78 Nd

LTT = lymphocytic transformation test; Nd = not done, LTT=LPT (lymphocyte proliferation test).