[Clinico-epidemiological characteristics of North Asian tick-borne exanthematous typhus].

Epidemiological and clinical features of Siberian tick typhus were evaluated in 106 patients. The disease has a tendency to seasonal variations as well as to increasing affection of urban and advanced-age population, less severe course, longer prepatent period, later appearance of exanthem, less frequent occurrence of face hyperemia, that of ocular injection and complications.