11/25/2025
We are seeing an increase in pertussis (whooping cough) cases in our community — including breakthrough infections.
If your child has been exposed to pertussis (whooping cough) at school, here is what you need to know:
What is pertussis?
Pertussis, or whooping cough, is a highly contagious infection that causes severe coughing fits. It can be especially serious for infants and young children.
How does it spread?
Pertussis spreads through the air when an infected person coughs or sneezes. People are most contagious in the early stages, often before they know they are sick.
What are the symptoms?
Early symptoms look like a cold: runny nose, mild cough, and low fever. After 1-2 weeks, the cough can become severe, with fits that may end in a "whooping" sound, vomiting, or trouble breathing. Some children may not have the classic whoop.
What should parents do after exposure?
- Monitor your child for symptoms for 21 days after exposure. If your child develops a persistent cough, especially with vomiting or difficulty breathing, contact your healthcare provider.
- Keep your child home if they develop symptoms until cleared by a healthcare provider.
- Antibiotic prophylaxis may be recommended for household contacts and children at high risk of severe illness (infants, those with weakened immune systems, or pregnant people in the third trimester). Azithromycin is the preferred antibiotic for treatment and prevention.
- Vaccination is the best protection. Make sure your child is up to date on their DTaP or Tdap vaccines. Children should receive five doses of DTaP between ages 2 months and 6 years, and again at 11 years, then boosted every 10 years.
- Pregnant people should receive Tdap during each pregnancy, ideally between 27–36 weeks, to protect newborns.
Additional information:
Local health departments and school officials will help with contact tracing and provide updates. If you get a letter from your school, please contact them first to see if your child is considered a close contact.
A close contact to a pertussis case in an elementary school is typically defined as someone who has had direct, face-to-face interaction, direct contact with respiratory, oral, or nasal secretions, or has shared a confined space in close proximity for more than one hour with the infected individual.
Follow any instructions from your school or health department.
Summary:
Pertussis can be serious, but prompt action and vaccination help protect your child and others. Watch for symptoms, keep vaccinations current, and consult your healthcare provider if you have concerns.