Vaccines that contain thiomersal include those against diphtheria, tetanus and pertussis (DTP), hepatitis B, Haemophilus influenzae type b (Hib), rabies, influenza and meningococcal diseases.

Nevertheless, around 2.4 million children under 5 years are still dying every year from such diseases, particularly measles, neonatal tetanus, tuberculosis, pertussis, poliomyelitis and diphtheria.