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[Regional epidemiologic characteristics of combined foci of tick-borne encephalitis, endemic rickettsioses and leptospirosis in Western Siberia].

https://arctichealth.org/en/permalink/ahliterature248468
Source
Zh Mikrobiol Epidemiol Immunobiol. 1978 Jul;(7):48-51
Publication Type
Article
Date
Jul-1978
Author
F F Busygin
M S Shaiman
I K Chulovskii
Source
Zh Mikrobiol Epidemiol Immunobiol. 1978 Jul;(7):48-51
Date
Jul-1978
Language
Russian
Publication Type
Article
Keywords
Animals
Arachnid Vectors
Cattle
Cattle Diseases - epidemiology
Encephalitis, Tick-Borne - epidemiology - veterinary
Geography
Humans
Leptospirosis - epidemiology - veterinary
Q Fever - epidemiology - veterinary
Reindeer
Rickettsia Infections - epidemiology - veterinary
Siberia
Ticks
Abstract
The authors carried out complex study of combined foci of infections with natural foci in Western Siberia and their reflection in human pathology. The results of serological examination of 5917 persons and of 1743 of farm animals in respect to tick-borne encephalitis, Asian tick-borne rickettsiosis, Q-rickettsiosis, and leptospiroses are analysed. Affection of the population with all the four infections in all the landscape zones under study was shown; the intensity of this affection with different infections differed. Combined natural foci of the mentioned infections were found to be widespread; epidemiological significance of such combination was unequal in different ladscapes, this depending on the ladscape characteristics of the natural foci of infections under study and of different ways of transmission of their causative agents.
PubMed ID
581250 View in PubMed
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Serologic and Molecular Prevalence of Rickettsia helvetica and Anaplasma phagocytophilum in Wild Cervids and Domestic Mammals in the Central Parts of Sweden.

https://arctichealth.org/en/permalink/ahliterature281976
Source
Vector Borne Zoonotic Dis. 2015 Sep;15(9):529-34
Publication Type
Article
Date
Sep-2015
Author
Karin Elfving
Jonas Malmsten
Anne-Marie Dalin
Kenneth Nilsson
Source
Vector Borne Zoonotic Dis. 2015 Sep;15(9):529-34
Date
Sep-2015
Language
English
Publication Type
Article
Keywords
Anaplasma phagocytophilum - genetics - immunology - isolation & purification
Animals
Animals, Domestic
Arachnid Vectors - microbiology
Cat Diseases - epidemiology
Cats
Deer - microbiology
Disease Reservoirs - veterinary
Dog Diseases - epidemiology
Dogs
Ehrlichiosis - epidemiology - veterinary
Horse Diseases - epidemiology
Horses
Ixodes - microbiology
Rickettsia - genetics - immunology - isolation & purification
Rickettsia Infections - epidemiology - veterinary
Seroepidemiologic Studies
Sheep
Sheep Diseases - epidemiology
Sweden - epidemiology
Abstract
Both Rickettsia helvetica and Anaplasma phagocytophilum are common in Ixodes ricinus ticks in Sweden. Knowledge is limited regarding different animal species' competence to act as reservoirs for these organism. For this reason, blood samples were collected from wild cervids (roe deer, moose) and domestic mammals (horse, cat, dog) in central Sweden, and sera were tested using immunofluorescence assay to detect antibodies against spotted fever rickettsiae using Rickettsia helvetica as antigen. Sera with a titer =1:64 were considered as positive, and 23.1% (104/450) of the animals scored positive. The prevalence of seropositivity was 21.5% (23/107) in roe deer, 23.3% (21/90) in moose, 36.5% (23/63) in horses, 22.1% (19/90) in cats, and 17.0% (17/100) in dogs. PCR analysis of 113 spleen samples from moose and sheep from the corresponding areas were all negative for rickettsial DNA. In roe deer, 85% (91/107) also tested seropositive for A. phagocytophilum with a titer cutoff of 1:128. The findings indicate that the surveyed animal species are commonly exposed to rickettsiae and roe deer also to A. phagocytophilum.
PubMed ID
26378972 View in PubMed
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