PBH 205 - MIDTERM EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026

PBH 205 - MIDTERM EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026 Public health measures that contribute most to people being healthier today than they were a century ago are: A. Sanitation, better nutrition and occupational safety B. Better medical care C. Tertiary prevention D. Health policy and management - Answers A Environmental health does NOT include: A. Safety of drinking water B. Disposal of toxic chemicals C. Control of air pollution D. Treatment of breast cancer - Answers D Which of the following statements is true? A. People have no control over their own health B. People's behavior is strongly influenced by their social environment C. Differences in the health of people of different races and ethnic groups is determined mainly by genetics D. People rarely choose to behave in ways that damage their own health - Answers B Monitoring the effectiveness of interventions is an import part of the public health approach to health problems in the community. A. True B. False - Answers A Restricting the legal drinking age in the U.S. to 21 is an example of: A. Market justice B. Libertarianism C. Conservatism D. Paternalism - Answers D Which of the following justifications for limiting people's freedom is likely to be the most controversial? A. To prevent someone from harming others B. To protect children C. Preventing someone from harming themselves D. To promote the general welfare - Answers C Which of the following is NOT true of epidemiology? A. It is a component of the assessment function of public health B. It studies disease occurrence in humans C. it is always an experimental science D. Its objective is primarily to determine the causes of disease - Answers C John Snow is called the father of modern epidemiology because: A. He was discovered the bacteria that cause cholera B. He was the first to use epidemiological methods to determine the source of a disease C. He conducted the first clinical trial by assigning some households to receive polluted water and other households to receive clean water D. He knows nothing - Answers B The main purpose of epidemiologic surveillance is: A. To determine the cause of an infectious disease so that it may be treated B. To identify those responsible for the occurrence of an outbreak so that they may be punished or put out of business C. To collect data on the number of patients with a disease so that the medical system will be prepared to handle them D. To recognize when an outbreak is occurring so that control measures may be instituted - Answers D From an epidemiologic perspective, which of the following is NOT true of chronic diseases? A. They usually have more than one cause B. They usually take a long time to develop C. They are more difficult to study than infectious diseases D. They are less prevalent in 2010 than in 1900 - Answers D Which of the following statements is NOT true of the 1976 Legionnaires' Disease outbreak? A. It was the first recognized in Philadelphia B. The causative agent was airborne C. It was caused by a perviously well-known virus D. It was clearly linked to one particular hotel - Answers C When epidemiologists are called on to investigate on outbreak of an infectious disease, what is the first thing they must do? A. Count the number of cases B. Ask the patients what they have eaten C. Agree on a case definition D. Quarantine the patients - Answers C Scientists at the National Institutes of Health are collaborating with the government of Thailand to test the effectiveness of a new vaccine in preventing HIV infection among prostitutes. Half the women receive the experimental vaccine and half receive an injection of salt water, and the women are then monitored for development of HIV infection. What kind of epidemiologic study is this? A. Cohort B. Case-control C. Retrospective D. Experimental - Answers D According to the scientific community, vaccines CAUSE autism A. True B. False - Answers B