Toronto residents are being asked to check their vaccination records after four measles cases were confirmed this week. As local health officials look into the cases, Health Minister Rona Ambrose, some of her provincial colleagues, and Toronto's mayor are all urging parents to make sure their children have been vaccinated. Check out what they have to say.

Health Minister Rona Ambrose:

"My message to parents is to please vaccinate your children. We know that vaccines are safe — there's no evidence that they are unsafe." Listen to Ambrose below. 

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Ontario Health Minister Eric Hoskins

'"Unless everybody, or as close to everybody as possible, is vaccinated … there is risk." Listen to Hoskins below.

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Quebec Health Minister Gaétan Barrette

"Vaccination – immunization – is the absolute weapon. It works." Listen to Barrette below. 

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Toronto Mayor John Tory

"I've never seen any reputable evidence that suggested that vaccination was other than safe and prudent for families."  Listen to Tory below. 

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Read more about measles, the vaccine and the recent cases in Toronto.