For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels. Often called the “100-day cough,” whooping cough or pertussis ...

Whooping cough cases are on the rise in the United States, according to data from the Centers for Disease Control and Prevention. For the week ending April 12, at least 8,064 whooping cough cases have ...

Heartbreak in Mexico: 45 babies have lost their lives to whooping cough. Most were not vaccinated, and the number of infections keeps climbing.