100-day cough (whooping cough) cases in Britain surged by 3,800% with young babies most at risk.

100-day cough (whooping cough) cases in Britain surged by 3,800% with young babies most at risk, warning doctors say. Over 2,000 lab-confirmed cases have been reported since Jan, a sharp rise from last year's 30 confirmed cases. Pertussis, a highly contagious bacterial infection, can lead to serious breathing difficulties and even seizures in infants, but can be prevented through vaccination.