Table 2.

IFA titers (IgG) of anti-B. henselaeantibodies and antibody recognition of the 41-kDa (FlaA) band in sera of 724 patients with lymphadenopathy and 100 healthy controls

IFA titerNo. of sera investigatedNo. (%) of sera B. clarridgeiae immunoblot positivea
Patients
 <643399 (2.6)
 64–25622912 (5.2)
 ≥5121567 (4.5)
 Total72428 (3.9)
Healthy controls
 <641000 
  • a Positive for the 41-kDa band.