[Routine vaccination in childhood].

Some major modifications of the recommended Swiss vaccination schedule have been introduced in spring 1996: 1. The vaccination against pertussis using the new acellular vaccines, which cause fewer side-effects. This allows the administration of a fourth and a fifth dose at the age of 2 and 4-7 years, respectively. 2. The consideration of combination vaccines, which contain the vaccinations against diphtheria, tetanus and pertussis as well as the vaccine against invasive diseases caused by Haemophilus influenzae type b. 3. In order to increase the individual vaccination protection, a second dose of MMR vaccine is recommended, preferably at the age of 4-7 years. A general recommendation for hepatitis B vaccination during adolescence may be expected in 1998.