- Mild redness, tenderness and swelling at the site of the injection for a few days.
- A mild fever and irritability for a few days is common.
- Rarely serious side effects may occur to the pertussis vaccine.
Minor side effects to DPT immunisation are common and are not a contraindication to further immunisations.
If infants are not fully immunised with DPT because of minor side effects, they may later develop diphtheria, whooping cough or tetanus which remain very serious illnesses.
The side effects can usually be managed with paracetamol 6 hourly for 2 days.