Highly contagious 100-day cough has 'worst outbreak for 40 years' as five babies die
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Whooping cough - also known as pertussis - is a potentially fatal bacterial infection that can be most deadly in unvaccinated children under the age of six months
Whooping cough - also known as pertussis - is a potentially fatal bacterial infection that can be most deadly in unvaccinated children under the age of six months