A large number of cases during World Wars I and II focused attention on the triad of arthritis, urethritis, and conjunctivitis ( often with additional mucocutaneous lesions ), which at that time was also referred to as "'Fiessenger-Leroy-Reiter syndrome " '.
42.
A bout of food poisoning or a gastrointestinal infection may also precede the disease ( the last four genera of bacteria mentioned above are enteric bacteria ) . " Shigella " is the most common organism causing reactive arthritis following diarrhea . " Chlamydia trachomatis " is the most common cause of reactive arthritis following urethritis . " Ureaplasma " and " mycoplasma " are rare causes.
