[Preventing transmission of infection in endoscopy: hygienic maintainance of flexible endoscopes and measures for personal protection].

For prevention of transfer of infective agents by the contaminated endoscope the importance of thorough mechanical cleaning of the endoscope and adequate disinfection is stressed. Mode of action and side effects of liquid disinfectants as well as resistance of microorganisms (spores and some mycobacteria) to germicidal chemicals are mentioned. The different steps of disinfection procedures and potential causes of failure are discussed. Automatic disinfection systems are required for a higher degree of security of both patient and staff of the endoscopic unit. A regular control of the efficacy of the disinfection process is recommended and models for implementation are discussed. For prevention of occupationally acquired infection general precaution guidelines (use of gloves, prevention of needle-stick injuries) and vaccination programs are stressed.