... disease. Infectious diseases are more common in developing parts of the world, but they don't recognize borders. HIV/AIDS The prevalence of AIDS is highest in Africa, but the disease, which is caused by infection with human immunodeficiency virus ...
http://www.helium.com/items/2480014-infectious-genetic-and-chronic-disease
http://www.helium.com/items/2480014-infectious-genetic-and-chronic-disease
