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2 results on '"Fomina LA"'

1. [Dispersal of the flea Ctenophyllus hirticrus and spreading of plague epizooties in Gorny Altai].

Author

Korzun VM, Chipanin EV, Innokent'eva TI, Mikhaĭlov EP, Fomina LA, Sotnikova TV, and Denisov AV

Subjects
Animals, Disease Reservoirs classification, Disease Reservoirs microbiology, Disease Reservoirs parasitology, Disease Reservoirs statistics & numerical data, Lagomorpha classification, Lagomorpha microbiology, Plague prevention & control, Population Control statistics & numerical data, Population Surveillance, Siberia epidemiology, Time Factors, Disease Vectors classification, Ecosystem, Insect Vectors classification, Insect Vectors microbiology, Plague veterinary, Siphonaptera classification, Siphonaptera microbiology, Yersinia pestis isolation & purification
Abstract

Gradual dispersion of an abundant flea species Ctenophyllus hirticrus specific to the Pallas's pika (the main plague carrier), is revealed in the Gorno-Altai natural plague focus on the territory, occupied by two populations of this lagomorph. Spreading of Yersinia pestis in these areas took place a short time later the rise of this ectoparasite's abundance. It is supposed that the colonization of these areas by C. hirticrus was one of the factors determined epizooties spreading within the focus and formation of new sites of stable Y. pestis preservation.

Published
2007

2. [Epizootological role of fleas in the Gorno-Altai natural plague focus (a review)].

Author

Innokent'eva TI, Korzun VM, Mashkovskiĭ IK, Mikhaĭlov EP, Chipanin EV, Fomina LA, Sotnikova TV, and Denisov AV

Subjects
Animals, Ecosystem, Host-Parasite Interactions, Life Cycle Stages, Plague veterinary, Risk Factors, Seasons, Siberia, Insect Vectors microbiology, Lagomorpha parasitology, Plague microbiology, Siphonaptera microbiology, Yersinia pestis isolation & purification
Abstract

Epizootological role of fleas in the Gorno-Altai natural plague focus (Sailugemsk focus) and numerous data on the flea viability are analyzed and generalized. Information concerning the flea natural infectivity with Yersinia pestis altaica is represented. Ecological peculiarities of some flea species parasitizing the main host, Mongolian pika Ochotona pallasi, and nature of their interrelations with Y. pestis are investigated. It is shown that the flea taxocenosis provides the permanent all year-round circulation of Y. pestis in the Gorno-Altai natural focus. Certain combinations of structural elements of the flea taxocenosis have a dominant significance in determination the circulation process at different phases of the annual epizootic cycle.

Published
2004

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