Originally Posted by
WithIntent
I have found no information about how they're actually identifying whether someone's been in Uganda in the previous 21 days. I'll be clearing customs and immigration at YYZ, I'm guessing there will be no questions to anyone about previous travel.
As I wrote above, they know your travel history. And they are not going to tell you how they know it. And you should absolutely expect questions about where you have been. Odds are there won't be questions, but it would be wise to be prepared.