Which of the following is responsible for the dramatic increase in life expectancy during the twentieth century?
A)Technology increases in the field of medical laboratory research
B)Advances in surgical techniques and procedures
C)Sanitation and other public health activities
D)Use of antibiotics to fight infections

Question

Quizplus · Accepted Answer

Improvement in control of infectious diseases through immunizations, sanitation, and other public health activities led to the increase in life expectancy from less than 50 years in 1900 to more than 77 years in 2002.

Which of the Following Is Responsible for the Dramatic Increase