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Whooping Cough (Pertussis)

What is Pertussis Disease (Whooping Cough)?

  • Pertussis, also known as whooping cough, is a highly contagious bacteria respiratory disease.
  • Pertussis is known for uncontrollable, violent coughing, often making breathing hard.
  • After coughing fits, someone with pertussis often needs to take deep breaths, which results in a "whooping" sound.
  • Pertussis can affect people of all ages but can be very serious, even deadly, for babies less than a year old.
  • Pertussis is a highly contagious disease and can affect up to 80% of household contacts.
    Pertussis Graphic

What are the symptoms?

  • Symptoms of pertussis usually develop within 5 to 10 days after exposure but may not develop for as long as 3 weeks.
  • In the first week or two, early symptoms may include:
    --Subtle onset of runny nose.
    --Low-grade fever.
    --Sneezing.
    --Mild, occasional cough.
    --Apnea or stop breathing when asleep.
  • After 1 to 2 weeks, symptoms may include:
    --Fits of many rapid coughs followed by a high-pitched "whoop" sound.
    --Throwing up during or after coughing fits.
    --Very tired after coughing fits.

How does Pertussis spread?

  • Pertussis is spread from person to person.
    --Coughing and sneezing.
    --Spend much time near one another and share breathing space.
    --Some babies get pertussis from older siblings, parents, or caregivers who might not even know they have the disease.
  • The best prevention for pertussis is the vaccine, but no vaccine is 100% effective.

Who should get the pertussis vaccine?

  • There are 2 vaccines that protect against pertussis. DTaP for children up to 6 years of age and Tdap for people 7 years of age and older.
  • People who have not been vaccinated and are in contact with a baby.
  • Babies beginning at 2 months of age, followed by a total of five doses through age 4-6 years.
  • Adolescents aged 11 through 18 years should receive a single Tdap.
  • Adults aged 19 through 64 years should receive a single Tdap.
  • Pregnant women should receive a Tdap for each pregnancy.
  • Anyone who has not received the full five doses of pertussis vaccine.
  • Either if you are exposed to pertussis and/or have the disease, you should still receive a vaccine containing pertussis.
  • All adults are recommended one dose of Tdap as soon as possible, especially if pregnant or in close contact with infants.

What are the vaccine side effects and risks?

  • Mild (common) problems after the vaccine may include:
    --Fever.
    --Pain, redness, and/or swelling where the shot was given.
    --Local reactions such as pain, redness, or swelling.
    --Drowsiness, fretfulness.
    --Tiredness.
  • Moderate (uncommon) problems after the vaccine may include:
    --Seizure (jerking or staring).
    --Non-stop crying, for 3 hours or more.
    --High fever, over 105ºF.
  • Severe (very rare) problems after the vaccine may include:
    --Serious allergic reaction.

CDC Resources





Page last updated: December 2, 2024