WebMD
Medicine Net: Measles
This site, provided by MedicineNet.com answers many questions associated with measles, ranging from "What is measles?" to "How can measles be prevented?" Also includes information on treatment, prognosis, and prevention.
PBS
Pbs Teachers: Deadly Ascent: Body Breakdowns
Explore the injuries mountain climbers can sustain when they reach high altitudes, and discover how extreme cold can damage the human body.