[New evidence for the detection of ehrlichia and anaplasma in ixodes ticks in Russia and Kazakhstan]. / Novye dannye o vyiavlenii érlikhii i anaplazm v iksodovykh kleshchakh v Rossii i Kazakhstane.

Polymerase chain reaction and sequence analysis were used to screen Ehrlichia and Anaplasma DNA in 900 specimens of Ixodes ticks of four genera (Dermacetor, Haemaphysalis, Ixodes, and Hyalomma) collected on 14 administrative territories of Russia and Kazakhstan. Anaplasma phagocytophilia DNA was detected and identified in Ixodes persulcatus ticks gathered in the Altai and Primorye Territories. Ehrlichia muris DNA was genotyped in the I. persulcatus ticks collected in the Tyumen, Omsk, and Novosibirsk Regions and the Altai Territory. Examining the Haemaphysalis concinna collected in the Primorye Territory revealed A. bovis DNA. The I. persulcatus ticks gathered in the Omsk Region were found to have "Ehrlichia-like "Schotti variant" DNA, Studying the ticks of the genera Dermatocentor and Hyalomma gathered in Russia and Kazakhstan failed to detect the representatives of the genera Anaplasma and Ehrlichia. The detection of A. phagocytophilia DNA in the I. persulcatus ticks in the Altai and Primorye territories and the serological verification of cases of human granulocytic anaplasmosis among patients with tick-borne infections in these territories lead to the conclusion that there are natural loci of this disease in West Siberia and the Far East of Russia.

[Detection of Rickettsia hulinii in ticks of the Haemaphysalis concinna species in Russia]. / Obnaruzhenie Rickettsia hulini v kleshchakh Haemaphysalis concinna na territorii Rossii.

The presence of Rickettsia hulinii was detected in ticks of the Haemaphysalis concinna species in the Asiatic part of Russia. It was the first detection of these rickettsiae outside the territory of the Chinese People's Republic. This tick is spread over a broken area and may occur in different regions of Eurasia. At present at least 3 rickettsial species of the tick-borne spotted fever group were found in Ixodes ticks on the territory of Eastern Siberia: R. sibirica, known to be the etiological agent of tick-borne rickettsiosis, R. hulinii with proved pathogenicity for laboratory animals and R.DnS14 with no data available on its pathogenicity.

[Combined focus of tick-borne encephalitis, tick-borne rickettsiosis and tularemia in the habitat of Haemaphysalis concinna in south central Siberia]. / Sochetannyi ochag kleshchevogo éntsefalita, kleshchevogo rikketsioza i tuliaremii v areale kleshchei Haemaphysalis concinna na ioge tsentral'noi Sibiri.

For the first time in the Krasnoyarsk region the population Haemaphysalis concinna ticks were found to be infected with the causative agents of three natural focal tick-borne infections--tick-borne encephalitis, tick-borne rickettsiosis and tularemia. The existence of the combined natural focus of these three infections has been confirmed by epidemiological data. Ticks Dermacentor nuttalli also play a similar role in combined foci of tick-borne encephalitis and tick-borne rickettsiosis in these focal territories.

[A new generation of acaricide--attractant acaricidal granules]. / Akaritsid novogo pokoleniia--attraktivno-akaritsidnye granuly.

The paper gives a brief account of the earlier results of papers with the development of attractive acaricidal granules (AAGs) and the results of their field tests in Tyumen Province and Krasnoyarsk Territory. AAGs in combination with sumithion yielded the best results than those with permethrin: their efficacy was over 90% and their action lasted 1.5 months.

[Cyclic changes in the population count of the taiga tick in the Stolby preserve]. / Tsiklicheskie izmeneniia chislennosti taezhnogo kleshcha v zapovednike "Stolby".

A harmonic analysis was carried out of Ixodes persulcatus density dynamics over 33 years and the analysis of small mammal density and some climatic factors. It was found that the chronological changes of all the three processes contained cyclic components with the period 5.5 and 11; 3-4; 5.5 and 14-16 years, respectively. A long-term prognosis of I. persulcatus density was made based on harmonic synthesis.