The CDC is trying to determine how many people were exposed to the measles while on an international flight to Dallas.
Tarrant County officials confirmed a resident tested positive after returning home from India. The resident was on a flight that stopped in Dubai and then arrived at DFW Airport on Jan. 6.
So far the investigation has revealed a limited exposure to Tarrant County residents. It is unclear how many on the flight are at risk.
Measles is an airborne disease spread by coughing and sneezing. It causes a reddish rash, high fever, cough, runny nose and watery eyes.
It usually lasts one to two weeks.
Adults who have received a measles vaccine series are considered immune.
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