Studies on the infectious etiology of human rheumatoid arthritis

Abstract
A total of 29 rheumatoid patients and 19 non‐rheumatoid patients were tested for evidence of present or past infection by M pneumoniae, M hominis, M fermentans, M arthritidis, M pulmonis, and M hyorhinis. The techniques of lymphocyte transformation, metabolic‐inhibiting antibody test, and mycoplasmacidal antibody test indicated no significant difference in the response of rheumatoid as opposed to non‐rheumatoid patients.