- Question: What is the most prevalent noncontagious disease in the world?
- Answer: Tooth decay is believed to be the most prevalent noncontagious disease in the world.
- Question: Who developed a vaccine against polio?
- Answer: Jonas Salk invented a vaccine against polio that, after being introduced in 1955, saved millions of people from the disease.
- Question: What causes the skin disease called shingles?
- Answer: Viruses can cause skin blisters known as shingles.
- Question: What causes the skin malady known as acne?
- Answer: Extra oil production during the teenage years makes many in this age group suffer a skin inflammation known as acne.
- Question: Who discovered penicillin?
- Answer: Scottish scientist Alexander Fleming’s discovery in 1928 of penicillin, the first antibiotic to successfully treat infections caused by bacteria, had far-reaching implications for medicine.

Human Health
Medioimages/Photodisc/Getty Images
:{{vm.state.secondsLeft|fixedLength:2}}
QUESTION {{(vm.state.currentQuestion + 1)}} of {{vm.questions.length}}
Score
{{vm.state.score|number:0}}
:{{vm.state.secondsLeft|fixedLength:2}}
QUESTION {{(vm.state.currentQuestion + 1)}} of {{vm.questions.length}}
Score
{{vm.state.score|number:0}}
Human Health
{{vm.state.numberCorrect}}/{{vm.questions.length}}
correct
{{vm.state.score|number:0}}/{{vm.maxPoints}}
points
Replay
Your results
Question
Question {{($index + 1)}}
Your Answer:
{{vm.state.responses[$index].isCorrect ? 'Your' : ''}} Correct Answer: