TICK-BORNE ENCEPHALITIS IN THE USSR.

The author gives the history of the study of tick-borne encephalitis in the USSR, following it up with a description of the etiological and epidemiological aspects and of the pathology, symptomology, diagnosis, treatment, and prevention of the disease. He stresses that other ticks as well as the main vectors of the virus, Ixodes, transmit the disease, in particular Dermacentor and Haemaphysalis. A detailed account of tick-borne encephalitis in the USSR may be of value in the study of the rather similar forms of the disease now being encountered more and more frequently in countries of South-East Asia as well as of northern and eastern Europe.