Serologische Untersuchungen über das Vorkommen der bovinen Ehrlichiose in den Kantonen Zürich, Schaffhausen, Thurgau, St. Gallen und Obwalden

Translated title of the contribution: Serological testing on the occurence of bovine ehrlichiosis in the Cantons Zürich, Schaffhausen, Thurgau, St. Gallen and Obwalden

Nicola Pusterla, C. Wolfensberger, H. Lutz, U. Braun

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The purpose of this study was to investigate the geographical distribution of bovine ehrlichiosis in the Cantons Zürich, Schaffhausen, Thurgau, St. Gallen and Obwalden. To this end, an indirect immunofluorescence assay was established. The diagnostic sensitivity and specificity was estimated to be close to 100% based on the results obtained with several reference sera from the US National Veterinary Services Laboratories and the seroconversion panels of 20 heifers and cows. Blood samples from 2557 healthy cattle were tested for antibody response against Ehrlichia phagocytophila. Ninety-three animals (3-6%) were seropositive with titers ranging from 1:20 to 1:320. Most of the positive animals were found in the area north of lake Zürich spanning to the german border, in the area between Walensee and Bad Ragaz, the Rhine valley and Klein Melchtal. All seropositive animals had grazed on pastures or alps with a favourable biotop for the tick Ixodes ricinus.

Translated title of the contributionSerological testing on the occurence of bovine ehrlichiosis in the Cantons Zürich, Schaffhausen, Thurgau, St. Gallen and Obwalden
Original languageGerman
Pages (from-to)543-549
Number of pages7
JournalSchweizer Archiv fur Tierheilkunde
Volume139
Issue number12
StatePublished - 1997
Externally publishedYes

Keywords

  • Bovine ehrlichiosis
  • Cattle
  • Ehrlichia phagocytophila
  • Indirect immunofluorescence assay
  • Switzerland

ASJC Scopus subject areas

  • veterinary(all)

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