This page provides general information about this condition. Text can be revealed by clicking on the green headers. Links to press releases, results from DWHC investigations as well as other useful documents and relevant literature available on the DWHC website can be found at the bottom of the page.
African Swine Fever is an infectious notifiable disease of swine caused by the African swine fever (ASF) virus. Most strains of this virus are highly virulent meaning that they are capable of causing serious disease in infected animals. However, some strains are less virulent so the range and extent of clinical signs varies but can include death of domestic and wild pigs, with serious economic impacts. ASF virus is not related to the virus that causes classical swine fever.
ASF virus is only infectious to swine and soft ticks (Ornithodoros). Disease transmission and spread can occur in a variety of ways:
The ASF virus strain circulating in the Baltic states and Poland is highly pathogenic to both domestic and wild pigs. Infected animals die within a few days of becoming infected and mortality rates can reach 100%. Clinical signs include high fever, swollen lymph nodes and hemorrhages in the skin. On post-mortem exam hemorrhage is seen in multiple organs, the spleen is enlarged and swollen lymph nodes are red. Other strains of the virus may cause persistent subclinical disease in infected animals.
ASF does not affect humans.
These measures are aimed at the general public, and in particular at hunters and wildlife rangers coming into contact with wild swine.
Anyone working with domestic pigs is advised not to hunt in areas where ASF is found.
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