The number of confirmed measles cases in Toronto reached 10 Saturday afternoon, says Toronto Public Health’s website.

No further details are known about the new case, and it’s not yet clear whether it’s linked to other recent cases in the region.

A case in the Niagara region brought Ontario’s total to 17 on Wednesday, said public health officials at the time.

Symptoms of measles typically include a fever, a cough, a runny nose and a rash that starts on the face. Most people recover in about 10 days, but cases in infants and vulnerable adults can be more serious. No specific treatment is available.

Province-wide, the total number of recent cases stands at 18, according to health ministry data. Public health officials have told the Star that Ontario’s annual number of reported cases per year has fluctuated from three to 22 over the past five years.

Carriers of the disease are generally contagious four days before and four days after the rash appears. Symptoms usually appear 10-14 days after exposure.

A measles, mumps and rubella vaccine is given to children in Ontario after their first birthday.

Ontario’s health ministry issued an advisory on Monday after about 1,000 people who attended a Christian youth event in Etobicoke were at risk of exposure because an infected person attended.

Toronto’s first measles cases of the year were announced on Feb. 2, after a wave of cases in the United States — seemingly centred on Disney theme parks in California — caught the attention of public health officials there. The Los Angeles Times reports that there are now 149 cases of measles in the U.S., Canada and Mexico that are tied to the California outbreak.

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