Research the following problem using a search engine such as www.altavista.com or www.google.com. Please avoid doing searches with AOL, Ask An Expert, or Ask Jeeves. They do not provide the full breadth of Websites needed to investigate scientific topics. Before pursuing this activity, first come up with a list of key words or phrases you would need to perform an accurate and concise search.
Public records maintained at the Centers for Disease Control show that people are acquiring diseases that have never been common in humans prior to the 1970’s. These diseases are called emerging diseases. What are believed to be the origins of these new diseases?
