[The Siberian and Far-Eastern subtypes of tick-borne encephalitis virus registered in Russia's Asian regions: genetic and antigen characteristics of the strains].

Agar gel precipitation test with cross-adsorbed immune sera was used for the antigenic differentiation of strains of tick-borne encephalitis virus (TBEV). Fifty strains of the Far East TBEV serotype and 46 strains of the Siberian (Aina) TBEV serotype were isolated from Ixodes persulcatus, which is the main vector of the above TBEV subtypes in the Asian and European parts of Russia. The fragment of the envelope protein gene was sequenced for TBEV strains.

[ECHO-II virus, the pathogen of the third outbreak of uveitis in children in Kransnoyarsk, 1986].

The third outbreak of an acute infection accompanied in 3 cases by inflammation of the uveal membrane (uveitis) was recorded among infants in Krasnoyarsk in 1986. From the infants with the eye involvement as well as from those in contact with the former, 36 strains of ECHO-11 virus were isolated, and seroconversion to this virus was demonstrated. All the infants in contact with the eye patients were given gamma-globulin which seemed to limit the spread of the infection.