Canadian Politics Today

Quite possible but those diseases also killed a lot of children the late 19th and early 20th century, even adults.

The child mortality rate for children under 5 was over 25% during the early 1900's.
Statista


Regardless of the cause of death, the disturbing part is how their deaths were treated. It's like they never existed.

And those diseases were especially prevalent in places with overcrowded living conditions, poor ventilation, poor hygeine and poor nutrition, making residential schools the perfect places for such diseases to thrive.