Many Factors Can Influence the Emergence of New Diseases

Many factors can influence the emergence of new diseases. Most are consequences of activities and behavior of the human hosts and environmental changes. Which of the following is a factor that can influence the emergence of new infectious diseases?

A) Increased prevention programs and trained personnel
B) Globalization of food supplies and changes in food processing and packaging
C) Decrease in sexual behavior, travel, drug use, and child care facilities
D) Peace Corps workers building sanitation systems that allow for healthier lifestyles that result in fewer diseases