[Infectious pathology and antibiotic usage in hospital. Results of a prevalence survey (author's transl)].

Prevalence surveys of infection and antibiotic usage in hospitals have been performed in U.S.A. on many times, but have never been performed in France. Conducted in a 529 beds hospital, this survey has shown that: - 38% of patients had an infection, - 41% of patients received antimicrobial therapy, - 61% of infections had not a microbiological proof. This prevalence survey is a useful aid for the bearing of the actions of the department of infectious pathology wich supports infection and antibiotherapy in each of their aspects in the whole hospital.