Q: What simple task should you ask health care workers to perform in order to prevent the spread of infection?

A. Wear a mask
B. Pull their hair back
C. Wash their hands
D. Wear scrubs

A: C. Wash their hands. Clean hands help prevent the spread of infection. A 1999 study in the American Journal of Infection Control found that health care workers washed their hands more frequently when asked to do so by their patients, and even used more soap.

(Source: http://www.ahrq.gov/consumer/20tips.htm,
Patient Fact Sheet: 20 Tips to Help Prevent Medical Errors)