2011 Saw More Measles Cases Than The Past 15 Years

Last year was the worst year for measles in the U.S. in 15 years, according to health officials.

There were 222 cases of measles, a large jump from the 60 or so seen in a typical year. Most of the cases last year were imported -- either by foreign visitors or by U.S. residents who picked up the virus overseas.

U.S. children have been getting vaccinated against the measles for about 50 years. But low vaccination rates in Europe and other places resulted in large outbreaks overseas last year.

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