Diphtheria and DTaP vaccine

The app compares diphtheria symptoms and outcomes with DTaP vaccine side effects, and shows how community vaccination (herd immunity) changes disease risk.

See diphtheria risks, symptoms, and outcomes alongside vaccine side effects in the same model.

This is an educational simulation and does not provide medical advice or personalized risk assessment.

• The common side effects of the DTaP vaccine are soreness, swelling, or fever and extended crying or high fever. A rare serious side effect is seizure related to fever.
• The common symptoms and outcomes of diphtheria are no noticeable symptoms, severe throat infection, heart or nerve complication, and death.
• By adjusting community vaccination rate, you can explore how herd immunity changes the probability of diphtheria infection in the model.