Has published more than 100 articles on diseases of animals that can be transmitted to people, including rabies. Chaired a National Academy of Sciences committee that reviewed how pet animals can serve as sentinels to detect environmental health hazards.
Expertise is in health promotion in worksite settings and health behavior change.
Studied effects of alcohol on driving and behavior. Tries to explain and predict health-related behavior based on the theory of personal investment as a motivational factor. Also contributed to the first Surgeon General's Report on Physical Activity and Health. Teaches a course on death and dying and one on sexuality and health. Has extensive experience in cholesterol testing, the role of nursing centers in providing health services for well populations, and worksite health promotion programs.