The U.S.
the U.S. has tallied 8,077 cases of whooping cough in 2025, compared with 3,847 cases period last years, but the CDC’s data shows.
the bacterial illness, formally known as pertussis, spreads easily and is especially dangerous for infants.
Everything You Need to Know About the Whooping Cough Vaccine
Whooping cough, also known as pertussis, is a highly contagious respiratory disease that can be especially dangerous for infants and young children. The whooping cough vaccine is one of the most effective tools in preventing this illness and controlling outbreaks. In this article, we explore everything about the vaccine, from its development and effectiveness to safety, schedule, and myths.
People of any age can become ill from pertussis, which creates a thick mucus in the windpipe and makes it hard to breathe.
What Is Whooping Cough?
What causes this disease and how does it spread?
Whooping cough is caused by the bacterium Bordetella pertussis. It spreads through airborne droplets when an infected person coughs or sneezes. It’s known for severe coughing fits followed by a “whooping” sound during the next breath.
What Is the Whooping Cough Vaccine?
How does the vaccine protect against pertussis?
The whooping cough vaccine works by stimulating the immune system to recognize and fight Bordetella pertussis. It is often given as part of combination vaccines such as DTaP (for children) or Tdap (for adolescents and adults).
Who Should Get the Whooping Cough Vaccine?
What are the recommendations by age group?
- Infants and Children: Series of 5 DTaP shots starting at 2 months.
- Adolescents: Tdap booster at age 11–12.
- Adults: At least one Tdap shot, especially if in close contact with infants.
- Pregnant Women: One Tdap shot during each pregnancy, preferably in the third trimester.
How Effective Is the whooping cough vaccine?
What does research say about its protection?
The vaccine is 80–90% effective at preventing serious disease. However, immunity wanes over time, which is why booster doses are necessary.
Are There Any Side Effects?
What should you expect after vaccination?
Common side effects include redness at the injection site, mild fever, or fussiness. Severe allergic reactions are extremely rare.
Why Are Booster Shots Important?
How does waning immunity affect protection?
Over time, the body’s immunity to pertussis decreases. Booster shots are essential to maintain protection and prevent outbreaks.
What Happens If Vaccination Rates Drop?
Can we see the return of pertussis?
Yes, in communities with low vaccination rates, outbreaks of whooping cough have occurred, endangering those who cannot be vaccinated, especially babies.
What Are the Common Myths About the Vaccine?
How can misinformation harm public health?
Some believe the vaccine causes autism or isn’t needed anymore. Both claims are false. Scientific studies have thoroughly debunked these myths.
Can Adults Still Get Whooping Cough?
Are adults at risk, and how can they protect themselves?
Yes. Adults with waning immunity can contract and spread whooping cough, often to infants. A Tdap booster can prevent this.
How Is the Vaccine Administered Globally?
What are global trends in vaccination?
Most countries include pertussis vaccines in their childhood immunization programs. WHO supports widespread use to reduce childhood mortality.