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In 2013, the Center for Disease Control announced that measles outbreaks were increasing, almost entirely among people who were not properly vaccinated.<ref>[http://www.usatoday.com/story/news/nation/2013/12/05/measles-cdc-vaccine-vaccinations-disease/3878375/]</ref>
 
In 2013, the Center for Disease Control announced that measles outbreaks were increasing, almost entirely among people who were not properly vaccinated.<ref>[http://www.usatoday.com/story/news/nation/2013/12/05/measles-cdc-vaccine-vaccinations-disease/3878375/]</ref>
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==Transmission==
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Measles is very contagious, the virus is spread by respiratory droplets (when an infected person coughs, sneezes, etc). Measles virus can survive in the air and on surfaces for up to 2 hours, and 90% of non-immune people who are exposed to measles become infected<ref>https://www.cdc.gov/vaccines/pubs/pinkbook/meas.html</ref>
    
==References==
 
==References==
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