Quarantine = separates and restricts the movement of people who were exposed to a contagious disease to see if they become sick.
Quarantine and Isolation. (2017, March 21). Retrieved July 26, 2017, from https://www.cdc.gov/quarantine/index.html
Prevalence = is the proportion of a population who have (or had) a specific characteristic in a given time period – in medicine, typically an illness, a condition, or a risk factor such as depression or smoking.
What is prevalence? (n.d.). Retrieved July 26, 2017, from https://www.nimh.nih.gov/health/statistics/prevalence/index.shtml
Morbidity = refers to having a disease or a symptom of disease, or to the amount of disease within a population. Morbidity also refers to medical problems caused by a treatment.
NCI Dictionary of Cancer Terms. (n.d.). Retrieved July 26, 2017, from https://www.cancer.gov/publications/dictionaries/cancer-terms?cdrid=44514