Infectious Diseases Are a Much Greater Problem in Developing Countries

Infectious diseases are a much greater problem in developing countries than in developed nations. In developing countries, such diseases account for nearly half of all deaths. This is because ______________

A) developing countries generally lack many of the health and medical services found in developed countries
B) most of the developing countries are in tropical climates and medicines donʹt work well in these climates
C) virtually no developed nation is willing to help the developing countries with their infectious disease problems
D) even when medical care is available, many people in developing nations do not have the money to pay for it
E) Both A and D.