Pertussis cases surged to more than 35,000 in 2024, nearly double pre-pandemic levels. The illness, also known as whooping cough, has been ticking upward for several decades despite an effective vaccine.
Pertussis cases surged to more than 35,000 in 2024, nearly double pre-pandemic levels. The illness, also known as whooping cough, has been ticking upward for several decades despite an effective vaccine.