| [organization of acaricidal treatments in two districts of the irkutsk region]. | in the irkutsk suburbs (a relatively southern area of the irkutsk region of the nosoarea of a natural tick-borne encephalitis focus), ixodes persulcatus imagoes begin its activity in the first 10 days of april and usually finishes it in september. in 1996-2006, there was a trend for an increase in the number of the tick's bites in human beings, as well as three-year cycles of fluctuation of this index. in the bratsk suburbs (a relatively northern area), the imago becomes active only in late apri ... | 2008 | 18368717 |
| [detection of borrelia miyamotoi in ticks ixodes persulcatus from russia]. | unfed adult ixodes persulcatus ticks from five regions of russia were examined to analyze the distribution and diversity of borrelia miyamotoi. dna of b. miyamotoi was found in 1.8% of ticks from leningrad oblast, 2.9% from sverdlovsk, 4.5% from novosibirsk, 2.3% from irkutsk oblast, and 2.5% from khabarovsk krai. the molecular typing of the b. miyamotoi dna was based on the partial sequencing of the 16s rrna, p66, and glpq genes. the only genetic variant of b. miyamotoi was detected in all samp ... | 2010 | 20795483 |
| [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. sequences of new-group strains of the sib ... | 2004 | 15293507 |
| [evolution of tick-borne encephalitis and a problem of evolution of its causative agent]. | the evolution of tick-borne encephalitis (tbe) is marked by the expanded nosological area, the transformation of landscapes, the formation of anthropurgic foci, the change of environmental systems, the increase of mortality rate mainly among urban dwellers, as well as pathomorphism. the evolution of natural tbe virus (tbev) populations was studied in eastern and western siberia, middle urals, and the european part of the nosological area. the paper first describes the types of evolutionary trans ... | 2007 | 18041219 |
| [study of the heterogeneity of 16s rrna gene and groesl operone in the dna samples of anaplasma phagocytophilum, ehrlichia muris, and "candidatus neoehrlichia mikurensis" determined in the ixodes persulcatus ticks in the area of urals, siberia, and far east of russia]. | a total of 3552 ixodes persulcatus from sverdlovsk, chelyabinsk, novosibirsk, irkutsk regions and khabarovsk territory were examined on the ehrlichia and anaplasma presence by nested pcr based on the 16s rrna gene. both anaplasma phagocytophilum and ehrlichia muris dna were found in i. persulcatus in all studied regions. a. phagocytophilum was detected in 1.3-6.3% of ticks and e. muris - in 2.0-14.1% of ticks. moreover, "candidatus neoehrlichia mikurensis" dna was found in 8 ticks collected in n ... | 2011 | 21786632 |
| distribution and characterization of tick-borne encephalitis viruses from siberia and far-eastern asia. | in this study, tick-borne encephalitis (tbe) viruses from siberia and far-eastern asia were characterized in order to determine virus subtype distribution. tbe viruses were isolated from ticks (ixodes persulcatus) collected in the far-eastern (khabarovsk and vladivostok) and siberian (irkutsk) regions of russia in 1999. phylogenetic analysis showed that isolates formed distinct clusters of far-eastern and siberian subtypes. there was also a minor difference in antigenicity between the irkutsk is ... | 2001 | 11369875 |