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Pertussis Information for the Public
Pertussis, also called whooping cough, is a respiratory illness caused by a type of bacteria called Bordetella pertussis.
Pertussis is very contagious.
Babies younger than 1 year old are at greatest risk for getting whooping cough and having severe complications from it.
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Find My Immunization Record
If you have been immunized in the State of Michigan, you may be able to download your immunization record from the Michigan Care Improvement Registry (MCIR).
Visit the Michigan Immunization Portal to learn more or contact your healthcare provider.
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More Information
Pertussis Vaccination
Diphtheria, Tetanus and Pertussis: The Diseases & Vaccines (Children's Hospital of Philadelphia)
Whooping Cough (Pertussis) in Michigan (MDHHS)
Whooping Cough Vaccination (Centers for Disease Control and Prevention)
How Vaccines Work
Video: How Do Vaccines Work? (American Academy of Pediatrics)
Spanish version: ¿Cómo funcionan las vacunas? (American Academy of Pediatrics)
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Accordion Item 2
The best way to prevent pertussis is to get vaccinated. CDC recommends pertussis vaccination for everyone.
The vaccine for pertussis is part of the DTaP and TDaP vaccines, a combination vaccine that protects against diphtheria, tetanus, and acellular pertussis.
DTaP is given to younger children and TDaP is given to older children and adults.
The routine schedule for DTaP vaccination for children is 5 doses given at ages:
- 2 months
- 4 months
- 6 months
- 15 through 18 months
- 4 through 6 years
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Questions About
Get answers to frequently asked questions about pertussis and the vaccine used to prevent it.
Pertussis (Whooping Cough): Questions and Answers (immunize.org)
Ask The Experts About Vaccines: Pertussis (immunize.org)
Video: DTaP Vaccine - Vaccines and Your Baby (The Children's Hospital of Philadelphia)
Clear Answers and Smart Advice About Your Baby's Shots (immunize.org)
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Reporting
Pertussis is a notifiable disease. A notifiable disease is one that doctors must report to state or local public health officials.
Public health officials track some diseases because they can spread easily, are serious, or happen often.
Notifiable diseases in Michigan:
Michigan's List of Notifiable Diseases 2025 By Condition
Michigan's List of Notifiable Diseases 2025 By Pathogen -
Risk of Disease
Pertussis (whooping cough) is common in the United States, with frequent outbreaks.
Whooping cough cases are on the rise in 2024 in the U.S.
Video: Whooping Cough Cases Rising: What You Should Know (American Academy of Pediatrics)
Whooping Cough (Pertussis) in Michigan (MDHHS)
About Whooping Cough Outbreaks (Centers for Disease Control and Prevention)
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Signs and Symptoms
It usually takes 5 to 10 days for symptoms to appear after exposure to the bacteria that cause whooping cough. Sometimes symptoms don't develop for as long as 3 weeks.
Whooping cough appears similar to a common cold early on. Healthcare providers often don't suspect or diagnose it until more severe symptoms appear.
Early symptoms
Can last for 1 to 2 weeks and usually include:- Runny or stuffed-up nose
- Low-grade fever (less than 100.4°F)
- Mild, occasional cough
Later Symptoms
One to 2 weeks after the first symptoms start, people may develop paroxysms, known as coughing fits.- These coughing fits usually last 1 to 6 weeks but can last for up to 10 weeks.
- Coughing usually gets worse as the illness continues.
- Coughing fits can cause people to
- Make a high-pitched "whoop" when they inhale after a coughing fit
- Vomit during or after coughing fits
- Feel very tired after the fit, but usually seem well in-between fits
- Have difficulty sleeping at night
- Struggle to breathe
- Fracture (break) a rib
About Whooping Cough (Centers for Disease Control and Prevention)
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Accordion Item 1
Transmission is usually person to person through
The bacteria that cause whooping cough spread easily from person to person through respiratory droplets in the air.
When a person with whooping cough sneezes or coughs, they release small particles with the bacteria in them. Other people can then breathe in the bacteria.
These bacteria can spread when people spend a lot of time together or share breathing space.
People can spread pertussis even if they don't have symptoms.