[Healthcare workers' hand hygiene: compliance of the recommendations].

Background: Handwashing is the most effective method of preventing the spread of nosocomial infection. Despite its simplicity, handwashing is frequently omitted by health care personnel. In order to promote hand hygiene at Farhat Hached hospital (Sousse-Tunisia), the team of hygiene sets up a programme of hand hygiene programme.

[Azathioprine for prevention of postoperative recurrence in Crohn's disease].

Background: Crohn's disease is a chronic inflammatory bowel disease that can involve any portion of the gastrointestinal tract. Up to 74% of patients require surgery. However, although resective surgery improves the clinical situation, relapses is frequent in most cases.