The New York City Department of Health says that there's another case of measles reported in the city as a result of a recent outbreak, bringing the total number of cases to 20.
The latest person to be affected is an adult, which means that 11 adults and nine children have acquired measles.
The Department of Health says that the outbreak remains centered in northern Manhattan and the Bronx, but some of the victims are from other boroughs.
Measles symptoms include a rash, high fever, coughing, red eyes and a runny nose.
The disease typically lasts five to six days, but in some cases, it can be deadly.
Health officials are urging residents to protect themselves by getting vaccinated.