Whooping Cough Ontario 2024 News. Whooping cough, also known as pertussis, is a cyclical disease that occasionally increases every two to six years in ontario. Cindy shen, associate medical officer of health for york region public health, said there.


Whooping Cough Ontario 2024 News

Sep 10, 2024 | 11:51 am. It is transmitted through respiratory droplets spread during.

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Whooping Cough Ontario 2024 News