• Children with minor illnesses, such as a cold, may be vaccinated. But children who are moderately or severely ill should usually wait until they recover before getting DTaP vaccine.
  
• Any child who had a life-threatening allergic reaction after a dose of DTaP should not get another dose.
  
• Any child who suffered a brain or nervous system disease within 7 days after a dose of DTaP should not get another dose.
  
• Talk with your doctor if your child:
  
  • had a seizure or collapsed after a dose of DTaP,
    
  • cried non-stop for 3 hours or more after a dose of DTaP,
    
  • had a fever over 105°F after a dose of DTaP.
    

Ask your health care provider for more information. Some of these children should not get another dose of pertussis vaccine, but may get a vaccine without pertussis, called DT.