Factors within social structures such as rules, regulations, and policies are categorized as 

Damage to cilia and irritation of respiratory tract lining by components of smoke increase susceptibility to infectious diseases.

HIV can only be eradicated if we have an effective vaccine.

Phase II clinical trials use a small number of subjects to determine drug safety.

Place the folowing steps of an outbreak invetigation into the correct order (1) Find cases systematically (2) Verify the diagnosis (3) Consider the incubation period (4) Apply active surveillance (5) Construct a working case definition

Which of the following refers to the presence of high blood pressure without a known cause?

The Prescription Drug Plan (Part D) helps cover costs of prescription drugs for senior citizens.

Which of these characteristics is NOT beneficial in making eradication possible?

Which of the following is true for screening tests with high specificity?

Which of these substances is not a major player in indoor air quality?