Further Reading

A.L. Mascarelli. "Infectious animals." Science News for Kids. April 17, 2013.

S. Ornes. "Deadly new flu." Science News for Kids. April 24, 2013.

S. Ornes. "Airports that speed germs' spread." Science News for Kids.

S. Ornes. "New dangers from bird flu." Science News for Kids. Jan. 4, 2012.

J. Raloff. "Deadly new virus emerges." Science News for Kids. March 19, 2013.