[Tick-borne encephalitis in the West Bohemian Region 1960-1991]

In 1960-1991 in the West Bohemian region 746 cases of tick-borne encephalitis were confirmed by serological examination. The highest morbidity was recorded in the population of Plzen--5.9 per 100,000 per year. During 1986-1991 the mean hospitalization period of patients with tick-borne encephalitis was 13.5 days. Analysis by age groups revealed the highest specific morbidity in subjects aged 15-34 years. In the limital age groups the disease was recorded only exceptionally. From data on the specific morbidity and clinical severity ensues that mass vaccination against this infection in areas with a lower risk could start in subjects older than 10 years.