In 2011, 107 measles cases required tracing almost 17,000 people. In 2014, there were 644 measles cases in the U.S., the largest number since the year 2000. Investigating the 107 measles cases in 2011 to prevent further spread cost the state and local health departments close to $5.3 million dollars. Here are the real costs of measles in the United States.