By NewsDesk  @bactiman63

The Ministerio de Agricultura in Madrid, Spain recently notified the World Organisation for Animal Health (OIE) of a case of Bovine spongiform encephalopathy (BSE) in a cow on a farm in Viniegra de Arriba, La Rioja.


On 22 December 2020, the Central Veterinary Laboratory in Algete, Madrid (National Reference Laboratory for TSEs, accredited under UNE-EN ISO/IEC 17025 standard) received a nerve tissue sample suspected to be infected by bovine spongiform encephalopathy (BSE) from the Regional Laboratory for Animal Health in La Rioja, Finca “La Grajera” (official regional laboratory), after a positive result was obtained through a HerdCheck BSE Antigen Test Kit (Idexx Laboratories) rapid test.

The National Reference Laboratory carried out the confirmation tests authorized according to EU Regulation No. 1148/2014. The selected test was the BioRad inmuno-blotting TeSeE Western Blot (Ref:3551169), with a positive result.

Afterwards, tests for BSE strain discrimination were carried out through hybrid immunoblotting with antibodies against PrP, confirming atypical BSE (H type strain). The sample was taken within the national TSE surveillance program (sampling of dead or non-slaughtered for human consumption animals over 48 months old). The animal was a crossbred cow born on April 20th 2003.

BSE is an animal disease that affects cattle (it belongs to spongiform encephalopathies transmissible subacute group (TSE). They are degenerative diseases of the central nervous system that are caused by agents called “pathogenic prions”. The BSE is characterized by the appearance of nervous symptoms in adult animals. The characteristic symptoms of the disease are changes in behavior and locomotor disorders.