Germ Theory - A theory in medicine stating that microorganisms are the causative agents of infectious, contagious diseases.⏎
Mortality - The number of deaths in a given time or place.⏎
Immune System - The system of biological structures and processes that protects the body from foreign substances, including pathogens.⏎
Globalization - The process by which regional economies, societies, and cultures are becoming integrated through a global network of trade, migration, communication, and the spread of new technology.⏎