Reactive ahritis is caused by:

Ans. (d) C. trachomatis Ref CMDT 2014, p 825 Reactive ahritis (formerly called Reiter syndrome) is the clinical tetrad of uretheritis, conjunctivitis (or uveitis), mucocutaneous lesions and aseptic ahritis. Most cases develop within days weeks after either a dysenteric infection or urogential infection. GI Urogenital Shigella Chlamydia trachomatus Salmonella Ureoplasma urealyticum Yersina Compylobacter Associated infection: Ahritis is most commonly assymetric, and frequently involves the large joints (most commonly ankle and knee); Sacroiliatis and ankylosing spondylitis is observed in atleast 20% of patients; especially after frequent recurrences.