ArticleActa veterinaria Scandinavica2001
Serological investigation of granulocytic Ehrlichia infection in sheep in Norway.
Article in Acta veterinaria Scandinavica, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Microorganisms inInternational journal for parasitology. Parasites and wildlife · 2026Article
- Natural Co-Exposure toLife (Basel, Switzerland) · 2023Article
- Presence ofPathogens (Basel, Switzerland) · 2023Article
- Article
- ExperimentalFrontiers in veterinary science · 2020Article
- Zoonotic Tick-Borne Pathogens in Temperate and Cold Regions of Europe-A Review on the Prevalence in Domestic Animals.Frontiers in veterinary science · 2020Review
- Tick-borne pathogens in Ixodes ricinus ticks collected from migratory birds in southern Norway.PloS one · 2020Article
- Molecular prevalence ofOpen veterinary journal · 2019Article
- Infection prevalence and ecotypes of Anaplasma phagocytophilum in moose Alces alces, red deer Cervus elaphus, roe deer Capreolus capreolus and Ixodes ricinus ticks from Norway.Parasites & vectors · 2019Article
- Experimental infection of lambs with tick-borne encephalitis virus and co-infection with Anaplasma phagocytophilum.PloS one · 2019Article
- Tick abundance, pathogen prevalence, and disease incidence in two contrasting regions at the northern distribution range of Europe.Parasites & vectors · 2018Article
- Intrauterine Transmission of Anaplasma phagocytophilum in Persistently Infected Lambs.Veterinary sciences · 2018Article
- Detection of Tick-Borne Pathogens in Lambs Undergoing Prophylactic Treatment Against Ticks on Two Swedish Farms.Frontiers in veterinary science · 2018Article
- Detection of Anaplasma phagocytophilum in Ixodes ricinus ticks from Norway using a realtime PCR assay targeting the Anaplasma citrate synthase gene gltA.BMC microbiology · 2015Article
- Lambs immunized with an inactivated variant of Anaplasma phagocytophilum.Acta veterinaria Scandinavica · 2015Article
- Climate and environmental change drives Ixodes ricinus geographical expansion at the northern range margin.Parasites & vectors · 2014Article
- Prophylactic treatment with flumethrin, a pyrethroid (Bayticol(®), Bayer), against Anaplasma phagocytophilum infection in lambs.Acta veterinaria Scandinavica · 2012Article
- Prevalence of Anaplasma phagocytophilum infection and effect on lamb growth.Acta veterinaria Scandinavica · 2011Article
- A comparative study of clinical manifestations, haematological and serological responses after experimental infection with Anaplasma phagocytophilum in two Norwegian sheep breeds.Acta veterinaria Scandinavica · 2011Article
- A morphological and molecular study of Anaplasma phagocytophilum transmission events at the time of Ixodes ricinus tick bite.Acta veterinaria Scandinavica · 2010Article
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2 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Serum samples of 749 sheep from 75 sheep flocks in Norway, i.e. 361 lambs (6 to 7 months old) and 388 adults (> 1.5 year), were analysed for antibodies to Ehrlichia equi. Ten animals from each flock were examined. Seropositive animals were found along the coast of southern Norway from Vestfold to Sør-Trøndelag (as far north as 63 degrees 38'N). Seropositive sheep were not found in southeast, east or northern Norway. Thirty-two flocks were seropositive, although tick-borne fever had only been diagnosed earlier in half of these. In 78% of the seropositive flocks, more than 80% of the sheep were seropositive. A total of 35.7% and 36.3% of lambs and adults were found seropositive, respectively. However, the overall seroprevalence among animals that had been grazing on Ixodes pastures were 0.80 for the lambs and 0.84 for the adults. Mean antibody titres (+/- SD) (log10) in seropositive lambs and adults were 2.59 (+/- 0.449) and 2.70 (+/- 0.481), respectively. No significant differences in either seroprevalence or mean antibody titre between sheep of different ages were obtained in this study. based on antibodies 94% of sheep flocks on Ixodes pastures were infected with a granulocytic Ehrlichia infection. The association between seropositive flocks and Ixodes infested pasture shows a very high degree of agreement (p < 0.00001). The present study indicates that granulocytic Ehrlichia infection in sheep is underdiagnosed in Norway.
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