Infection control to quality improvement: the right time, the right place, the work to be done.

Many infection control epidemiologists are moving into the quality improvement field. The marriage of epidemiology with quality improvement is a logical step. Several things have to happen for this union to be successful, however. Most importantly, collaborative relationships must be forged with a variety of healthcare providers and practical, reliable, and valid indicators, and the methods for measuring them must be developed. This will take time, but epidemiologists should insist on and support the development of a robust discipline that combines the best of both worlds.