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Beware: 2011 is on track to be the worst year for measles cases in more than a decade. Although the Centers for Disease Control declared the highly infectious and potentially fatal disease “eliminated” from the US in the early 2000s, it continues to spread, with the highest number of cases this early in the year since 1996, the CDC reported this week. Here’s the scoop on the outbreak and how to protect yourself and your family.
More than 95% of the people who receive a single dose of MMR will develop immunity to all 3 viruses. A second vaccine dose gives immunity to almost all of those who did not respond to the first dose.