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Which of the following is NOT an indirect source of transmission? 

An observational study is investigating the link between sedentary habits and heart disease.  The RDN works with the participants in the study to record how much they normally eat and exercise.  They ask about other lifestyle factors such as smoking, stress, and environment.  At the end of the study, they found that people who walked more than 6,000 steps a day had lower rates of strokes. Also, people with the fewest steps had an increased risk of stroke.  What type of conclusion(s) can be drawn?

Which level of government can pass laws that impact the health and safety of Americans? 

NGOs work independently of the government on community health issues. 

What is the viral load?  Why is it essential to epidemiology? 

Morbidity would apply in the following situations:

Explain two ways epidemiological research can be used.  

Describe the 3 criteria used to prioritize public health action.  

Which of the following statements accurately defines an odds ratio in the context of a case-control study?

Most infectious diseases are acute, but some can develop into chronic diseases.