The locations include the Old Country Buffet in Elmira on April 30th between 1pm and 4 pm, the Ontario Travel Plaza, the Sheraton Niagara Falls, and Exit 5 on Interstate 390.
The virus is airborne and may remain in an area up to two hours after the infected person has left.
Public health officials are warning people who visited several NY locations including a rest stop and a diner that they could be at increased risk of contracting measles. They should also watch for cold-like symptoms, high fever, or a red rash that lasts up to a week - signs they may have contracted measles.
Infants under one year of age, pregnant women and people with weakened immune systems can get extremely ill from the highly contagious disease.
All individuals who were exposed, especially those without immunity or who are not sure if they have been vaccinated, should monitor for symptoms of measles.
Fresno County's Department of Public Health confirmed a case of measles in a Fresno County adult.
People with symptoms should contact their health care provider.
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To prevent others from being exposed to the illness, individuals who may have been exposed and may have symptoms, should contact their health care provider, a local clinic, or a local emergency department before going for care, according to the state.
Others who may have been exposed are being urged to check their vaccination records to ensure their shots are up to date.
We're told that person stopped at five locations between April 30 and May 2.
People are considered infectious from four days before to four days after the rash appears.
■ Niagara Falls Urgent Care, 3117 Military Road Suite 2, Niagara Falls, N.Y. from 3 to 6 p.m. on May 1. Individuals should receive two doses of MMR vaccine to be fully protected.
If you suspect that you may be at risk, you will have to see a doctor who will determine whether you are immune based on your medical records.