The dramatic increase in average life span during the 20th century is credited to a public health program such as ________.

Question

Quizplus · Accepted Answer

Vaccination is one of the most important public health programs that contributed to the increase in life expectancy during the 20th century. Vaccines have prevented numerous infectious diseases that were once the leading causes of death, such as smallpox, measles, and polio. Other public health programs such as improving sanitation, food safety, and environmental hygiene were also crucial factors in the increase in life expectancy. Dental insurance premiums, malpractice, and community water fluoridation are not directly linked to the increase in life span.

The Dramatic Increase in Average Life Span During the 20th