COVID-19: Should you be wearing a mask?

So should you be wearing a mask? Public health officials in Canada say if you're healthy you don't need to. But, as the COVID-19 pandemic rages, people are starting to question that advice.    National Post health reporter Sharon Kirkey explains all you need to know about masks.   Monique Beaudin hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices