[Epidemiology of measles and mumps. 1st part: measles (author's transl)].

Measles morbidity is seen to follow a cyclic pattern with peaks and ebbs every 2--3 years. The maximum in the annual course is found in the second quarter, the peak of the age-specific morbidity in Central Europe in the 4th year of life. At 15 years of age, seroconversion is practically 100%. Complications can be expected in 6,7% of cases, mortality in about 1:10,000. Encephalitis occurs in about 1,2% of cases and is often followed by neurological and psychical damage.