Pertussis
Pertussis, or whooping cough, is a very contagious bacterial infection of the airways. It may begin like a cold, then develop into repeated coughing fits that can continue for weeks or months. Babies are especially vulnerable to serious illness. An infected person with only mild symptoms can still pass the infection to others.
Prevention: Mixed
Symptoms
- Runny or blocked nose, mild fever, and an early mild cough
- Repeated coughing fits, sometimes followed by a whooping sound
- Vomiting or exhaustion after coughing
- Babies may have pauses in breathing with little or no cough
Transmission
- Breathing in particles released by an infected person coughing or sneezing
- Sharing breathing space or prolonged close contact
Prevention
Vaccination helps protect against whooping cough. Cover coughs and wash hands. After contact with someone who has pertussis, ask a healthcare professional whether preventive treatment is needed, particularly if a baby or another vulnerable person could be exposed.
Diagnosis and care
Early antibiotic treatment can reduce illness and spread. Seek prompt care for severe coughing, and immediate care for breathing difficulties.
Source
- About Whooping Cough
Based on CDC information
Source language: English
Source reviewed: November 26, 2025
Source accessed: May 17, 2026
- CDC: Symptoms of Whooping Cough
Based on CDC information
Source language: English
Source accessed: October 7, 2026