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Updated: Apr 18, 2026

Detection of Abnormal Prion Protein by Immunohistochemistry
Published on: May 5, 2023
Identification of H-type BSE in Portugal
Leonor Orge1, Carla Guedes Machado, Luísa Ramalho
1a Laboratório de Patologia polos Benfica e Vairão; Instituto Nacional de Investigação Agrária e Veterinária, IP ; Lisboa e Vairão , Portugal.
Abstract:
During the bovine spongiform encephalopathy (BSE) epidemic, Portugal was the third most affected country. As a result of a successful national eradication plan, the number of BSE affected animals has been progressively declining in Portugal with no cases identified in 2013. However, within the scope of this active surveillance scheme, we have identified the first H-type BSE case born after the introduction of the reinforced ban in fallen stock. Here, we report the phenotypic features of this case and the analysis of the protein coding sequence of prnp as well as the prnp promoter and intron 1 insertion-deletions.

