A Baltimore 12-month-old with a suspected case of measles, a highly contagious respiratory disease, does not have the virus, city health officials said Thursday.
The child was taken to two area hospital emergency departments on Jan. 21 with symptoms of measles and initial testing was positive, according to the Baltimore City Health Department. But further testing at the U.S. Centers for Disease Control and Prevention showed the child had a reaction to the measles, mumps and rubella combination vaccine she received earlier in the month.
The CDC reported that five percent of people have such a reaction, with fever and rash.
Dr. Leana Wen, the Baltimore City Health Commissioner, said the city was taking precautions considering an ongoing multi-state outbreak of measles believed to have begun in Disneyland in Southern California in December. The CDC reported Thursday that 84 people in 14 states have been infected, with about 15 percent hospitalized. Many were not vaccinated, the CDC said.
There's been no documented case of measles in Baltimore City in at least a decade and 99 percent of school children are vaccinated. State records show Montgomery County had one case in 2013 and two in 2011.
Wen said the cases around the country should be a "wake up call" for parents to vaccinate their children. The vaccine became available in 1963 and two doses are recommended for children.