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pertussis

Whooping cough cases up this year
[projekktor id=’21947′] Whooping cough is also known as pertussis. Its…

Whooping cough on the rise
Public health officials are urging Canadians to check that…
[projekktor id=’21947′] Whooping cough is also known as pertussis. Its…
Public health officials are urging Canadians to check that…