Experts say the sharp rise is attributable to several factors, including a decline in vaccination rates, the ease of COVID-19 restrictions, and the disease's nature.

This year, New Hampshire is reporting 51 whooping cough cases. While the figure is an increase year over year, the state was averaging around 70 cases each year in a period before the pandemic.

In 2024, the number of whooping cough cases in the U.S. have been at least 5 times higher than in 2023. Outbreaks among adolescents have been reported in schools in several states.

Whooping cough, known clinically as pertussis, has caused the death of at least five, according to a ProPublica report, and cases skyrocketed by 1,500% nationwide since a 2021 low point attributed ...

The Oregon Health Authority recorded 1,105 cases of pertussis in 2024, commonly known as whooping cough, with 44 outbreaks around the state. There were only 315 fewer cases in 2024 than in 1950 ...

Whooping cough cases surge across the US as vaccinations decline The CDC reports more than 32,000 cases — a number nearly six times higher than this time last year By Nicole Karlis Senior Writer ...

What's New More than 420 new whooping cough cases were reported across the U.S. for the week ending on December 21, bringing the cumulative year-to-date case number surging past 33,300 as health ...

In the week ending Dec. 7 — the most recent data available — the U.S. had reported more than 30,000 cumulative whooping cough cases, more than six times the number at this time last year.

Whooping cough is a highly contagious bacterial infection caused by Bordetella pertussis. Symptoms typically begin like a common cold, with a mild fever, sneezing and coughing.