You Do Need power plug adapter while traveling from Canada to Burundi.

Here is Why You Need An Adapter

The outlet and plug type used in Burundi are C and E and in Canada are A and B. This is how they look like.

Canada

In Canada, outlets of type A and B are in use.

Type A

Type B

Burundi

In Burundi, outlets of type C and E are in use.

Type C

Type E