A study of the gram-negative bacterial flora in patients with ankylosing spondylitis.

Abstract

1. Twenty-eight patients with active definite primary ankylosing spondylitis and fifty-four healthy control subjects were studied. 2. The HLA-B27 antigen was found in 75% of patients and 3.7% of controls. 3. Fecal samples from these subjects were cultured for gram-negative enteric bacteria on two occasions within one month. Positive cultures for Klebsiella… (More)

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