Antibody toCorynebacterium parvuminNormal HumanandAnimalSera

Usingamicrotiter bacterial agglutination test, wehaveestimated antibodies toCorynebacterium parvumin"normal" humanand"normal" andimmune animal sera. Widely differing levels ofC.parvumantibodies werefoundinthe normal humansera. Themedian titer forall310humanserawas1:128, whereas thatforthe1-to17-year and18-to50-year subgroups was1:64and1:512, respectively. Antibody titers inthevarious animal species weregenerally much lower.