Editing Classical swine fever (section)

==Clinical signs==
Swine fever causes [[fever]], [[lesion|skin lesions]], [[convulsion]]s, splenic [[infarction]]s and usually (particularly in young animals) [[death]] within 15 days.{{citation needed|date=October 2022}}

The disease has acute and chronic forms, and can range from severe, with high mortality, to mild or even unapparent.{{citation needed|date=October 2022}}

In the acute form of the disease, in all age groups, there is fever, huddling of sick animals, loss of appetite, dullness, weakness, conjunctivitis, constipation followed by diarrhoea, and an unsteady gait. Several days after the onset of clinical signs, the ears, abdomen and inner thighs may show a purple discoloration. Animals with acute disease die within 1–2 weeks. Severe cases of the disease appear very similar to [[African swine fever]]. With low-virulence strains, the only expression may be poor reproductive performance and the birth of [[pig#Reproduction|piglets]] with neurologic defects such as congenital tremor.<ref>{{Cite web|url=https://www.oie.int/en/animal-health-in-the-world/animal-diseases/classical-swine-fever/#D|title=Classical swine fever}}</ref>