RESUMO
Results of virologic examination of synanthropic birds procured on the south part of West Siberia during epizootic in autumn 2005 and during postepizootic period (winter 2005-2006) are presented. During epizootic period one strain belonging to H4 subtype of hemagglutinin, which was not highly pathogenic, was isolated from a magpie. During postepizootic period influenza A viruses in synanthropic species were not found.
Assuntos
Aves/virologia , Surtos de Doenças , Monitoramento Ambiental , Vírus da Influenza A/isolamento & purificação , Influenza Aviária/epidemiologia , Animais , Embrião de Galinha , Monitoramento Epidemiológico , Testes de Hemaglutinação , Hemaglutininas/análise , Vírus da Influenza A/classificação , Vírus da Influenza A/imunologia , Sibéria/epidemiologia , Proteínas Virais/análiseRESUMO
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.
Assuntos
Anaplasma phagocytophilum/isolamento & purificação , Anaplasma/isolamento & purificação , Ehrlichia/isolamento & purificação , Ixodes/microbiologia , Anaplasma/genética , Anaplasma phagocytophilum/genética , Anaplasmose/epidemiologia , Animais , DNA Bacteriano/análise , DNA Bacteriano/genética , Ehrlichia/genética , Humanos , Cazaquistão/epidemiologia , Reação em Cadeia da Polimerase , Federação Russa/epidemiologia , Análise de Sequência de DNA , Estudos SoroepidemiológicosRESUMO
Analysis of Q-fever morbidity and serological studies of representative extracts of population, agricultural and wild animals permitted to reveal the importance of inner-herd foci in epidemiology of this infection. It is shown that the level of registered morbidity mainly depends on the state of Q-fever laboratory diagnostics.
