Pertussis Information

What is Pertussis (Whooping Cough)?

  • A very contagious respiratory illness caused by a type of bacteria called Bordetella pertussis
  • Begins like a common cold: mild fever, runny nose, sneezing with an occasional cough and then symptoms worsen
  • Not everyone with pertussis “whoops” when coughing
  • Can cause breathing failure or difficulties, pneumonia, and swelling of the brain
  • Highly vulnerable population includes babies and infants
  • Pregnant women are highly encouraged to get a Tdap vaccine during their third trimester of pregnancy regardless of vaccination history
  • Tdap booster shot will pass some of the protection to the baby from the mother, until the baby is old enough (6 to 8 weeks) to get immunized

The Fresno County Immunization Program provides immunizations for children, who qualify for the Vaccines for Children Program (VFC), and eligible adults to protect them against vaccine-preventable diseases.

What is Pertussis?

Medical Providers

School Requirements



The Fresno County Department of Public Health Immunization Program utilizes the California Immunization Registry (CAIR). For more information on CAIR visit California Immunization Registry.