The number of Czechs infected by tick-borne encephalitis rose to 854 last year, which was 80 more than in 2019 and the highest number since 2012, according to the data of the National Health Institute (SZU) released Thursday. The VZP general health insurance company says the interest in vaccination against encephalitis has been growing. The number of tick-borne encephalitis cases was increasing since 2015 when the SZU recorded 355 of them, but the figure more than doubled by last year. By contrast, the occurrence of Lyme disease fell in the past two years. Last year, 3,710 people got infected with it, which was the smallest figure over the past five years. Last year, 153,400 VZP clients asked for tick-borne encephalitis vaccination, which was about 18,100 more than a year ago. The vaccine has to be repeated three times, already protecting after the second dose after 14 days. One dose costs CZK 800-1000 and is partly covered by the health insurance.