Ottawa Public Health (OPH) says they have no record of a child recently diagnosed with measles being vaccinated against the illness.
Dr. Rosamund Lewis, Associate Medical Officer of Health at OPH, says they're unable to confirm whether or not the child had been exempted for religious or health reasons because of privacy policies. She says less than two per cent of children in the community have been exempted from vaccines.
OPH says the child, a student at St. Stephen's Catholic School, likely contracted the disease on a recent trip to the Philippines.
Lewis says it's critical for anyone who's travelling to make sure their vaccines are up-to-date.
"It could be anywhere, even to Vancouver," she says, "Countries you wouldn't think of as high risk areas or places to travel to."
St. Stephen's is encouraging students who haven't been immunized or whose parents don't know if they're immunized to stay home from school until March 18.
CFRA's Dr. Barry Dworkin says if you aren't sure of whether or not you're protected against the highly contagious illness, you can get a blood test or get a booster shot.