The best way to prevent pertussis (whooping cough) among infants, children, teens, and adults is to get vaccinated. Also, keep infants and other people at high risk for pertussis complications away from infected people.
In the United States, the recommended pertussis vaccine for infants and children is called DTaP. This is a combination vaccine that protects against three diseases: diphtheria, tetanus, and pertussis. For maximum protection against pertussis, children need five DTaP shots. The first three shots are given at 2, 4, and 6 months of age. The fourth shot is given between 15 and 18 months of age, and a fifth shot is given before a child enters school, at 4–6 years of age. Parents can also help protect infants by keeping them away as much as possible from anyone who has cold symptoms or is coughing.
Vaccine protection for pertussis, tetanus, and diphtheria fades with time. Before 2005, the only booster available contained protection against tetanus and diphtheria (called Td) and was recommended for teens and adults every 10 years. Today there are boosters for pre-teens, teens, and adults that contain protection against tetanus, diphtheria, and pertussis (Tdap). Pre-teens going to the doctor for their regular check-up at age 11 or 12 years should get a dose of Tdap. Teens who did not get this vaccine at the 11- or 12-year-old check-up should get vaccinated at their next visit. Adults who did not get Tdap as a pre-teen or teen should get one dose of Tdap. Pregnant women not vaccinated with Tdap should get one dose of Tdap postpartum before leaving the hospital or birthing center. Adults 65 years and older (grandparents, childcare providers, and healthcare providers) who have close contact with infants should get a dose of Tdap, following the newest vaccine recommendations. Vaccination with Tdap is especially important for families with caregivers of new infants.
Women should get a Tdap vaccination during every pregnancy to protect their infant from whooping cough, even if they have had the Tdap vaccine before.
The easiest thing for adults to do is to get Tdap instead of their next regular tetanus booster—that Td shot that they were supposed to get every 10 years. The dose of Tdap can be given earlier than the 10-year mark, so it is a good idea for adults to talk to a healthcare provider about what is best for their specific situation.