Whooping cough cases are surging in Canada. What’s going on?
Quebec has seen the biggest spike in cases, with more than 11,600 reported so far this year, up from the annual average of 562 cases between 2015 and 2019.
Quebec has seen the biggest spike in cases, with more than 11,600 reported so far this year, up from the annual average of 562 cases between 2015 and 2019.
