WGU D115 Exam with Questions and Answers

WGU D115 Exam with Questions and Answers What are some effective countermeasures for infectious disease transmission? ANSWER Control insect vector population, modern sanitation facilities, clean water, vaccines. How do the incidence and prevalence rate differ? ANSWER Incidence rate is the number of new cases of a disease reported during a specific period, divided by the number of individuals in the population. Prevalence rate is the proportion of the population affected by a disease at a specific point in time. How is relative risk used in relation to disease processes? ANSWER Relative risk is a probability, not an actual outcome, to determine the relative risk you take the increased rate of the disease among individuals exposed to a risk factor and divide by the incidence rate of the disease among individuals not exposed to a risk factor. What are some examples of diseases that correspond with the liability model? ANSWER - Liability threshold model Pyloric stenosis Autism spectrum Congenital malformations What are empirical risks and how do they affect disease? ANSWER Empirical risks are risks based on direct observation