In this case report the potential relationship between an Entero- or Teschovirus infection and
paresis in two sows in an Austrian breeding
farm is discussed. According to the anamnesis
and the results of clinical examination at the University of Veterinary Medicine potential
diagnoses were discussed.
The paralysis of the back legs could either be
due to non infectious traumata, selen poising
and organphosphate or to infectious diseases
like erysipelas, encephalomyelitis due to
Teschovirus, pseudorabies, swine fever and brucellosis. During necropsy space-occupying
lesions in the spinal cord were excluded, because abscesses can cause paralysis due to nerve
compression. These differential diagnoses were
excluded during pathological examination.
The presence of a severe non-purulent encephalomyelitis was assumed to be indicative for an
Entero- or Teschovirus infection. The clinical
and histological findings were mainly in
accordance with descriptions in literature. However, the results of the molecular-genetic
examination in the AGES did not indicate an infection with the notifiable porcine teschovirus
Porcine enterovirus 1 was found in the spinal cord sample of one of the animals. Due to often
silent disease, infection is often clinically inapparent and is therefore difficult to diagnose.
Evidence for infection is a positive finding in
porcine teschovirus 1