[Requirements of mandatory accident insurance for hospitals, which participate in inpatient treatment of occupational accident patients: position of the National Reference Center for Hospital Hygiene].

Aseptic operations as well as operations on infected sites can be done in the same operating room. Two or more theatres can share common facilities such as X-ray equipment, scrub-up or anaesthesia areas. Sophisticated air locks with double doors, which separate the protective zone from the operating room are not necessary to maintain a good hygienic standard. Nevertheless the new requirements for theatre design by the German "Gesetzliche Unfallversicherungen" are much higher. In this commentary we try to summarize scientific evidence regarding design of a theatre and infection control.