D. Hüssy's scientific contributions

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Publications (2)

First documentation of a Neospora-induced "abortion storm" (exogenous transplacental transmission of Neospora caninum) in a Swiss dairy farm
  • Article

April 2005

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20 Reads

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19 Citations

SAT Schweizer Archiv für Tierheilkunde

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D Hüssy

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A Kuffer

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In a Swiss dairy farm (canton of Geneva) consisting of 73 animals 8 abortions were observed within 2 weeks. Serological and molecular biological analyses (PCR) on aborting dams, and abortion materials, respectively, revealed that the protozoan parasite Neospora caninum was the causative agent. Besides the 8 aborting animals, 12 other non-aborting heifers were found to be serologically positive for this parasite. All positive sera were further tested in an avidity-ELISA to elucidate the recency of infection. All seropositive animals but one showed low avidities at the time the abortion storm started. This indicated at a recent N. caninum-infection within the herd. Thus, the animals most probably were exposed to N. caninum-oocysts (e.g. by dog feces-contaminated forage) and the resulting abortion storm was due to an exogenous (formerly known as "horizontal") parasite transmission into a naive herd. This is the first documented record of such an event in Switzerland.

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Citations (2)

... Se considera que Ac IgG de baja avidez son indicativos de una infección primaria reciente de aproximadamente 2 meses, mientras que Ac de alta avidez se observan en infecciones de más de 6 meses (Dubey et al., 2017). Esta técnica tiene una utilidad diagnostica importante, porque permite diferenciar si el aborto es debido a una infección horizontal reciente o consecuencia de la recrudescencia de una infección crónica (Jenkins et al., 2000;McAllister et al., 2000;Schares et al., 2002;Sager et al., 2005). Sin embargo, esta técnica debe ser aplicada a nivel de rodeo, porque algunos vacunos individuales pueden mantener una avidez baja aunque estén infectados desde hace años (Björkman et al., 2003). ...

Reference:

Parasitemia y respuesta inmunitaria durante la gestación en vacas para carne seropositivas a Neospora caninum
Mise en évidence d´un cas de «abortion storm» (transmission transplacentaire exogène de Neospora caninum) dans une exploitation de vaches laitières: une première en Suisse
  • Citing Article

  • March 2005

SAT Schweizer Archiv für Tierheilkunde

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D. Hüssy

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A. Kuffer

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... Varios trabajos han propuesto al manejo intensivo como un factor de riesgo clave para explicar la mayor prevalencia de N. caninum que se suele observar en los tambos comparados con los rodeos de cría, lo cual se adjudicó a una mayor exposición posnatal a ooquistes que contaminan el agua y el alimento del ganado 5,27,33 . Otros estudios, por el contrario, han identificado la transmisión vertical endógena como factor de riesgo en tambos con sistemas intensivos 1,2,11 . ...

Reference:

Seroprevalence and risk factors associated with Neospora caninum in dairy farms from the Province of Salta, Argentina
First documentation of a Neospora-induced "abortion storm" (exogenous transplacental transmission of Neospora caninum) in a Swiss dairy farm
  • Citing Article

  • April 2005

SAT Schweizer Archiv für Tierheilkunde

·

D Hüssy

·

A Kuffer

·

[...]

·