A viral infectious disease that results_in infection in pigs, has_material_basis_in African swine fever virus, which is transmitted_by contact with sick animals or transmitted_by ingestion of contaminated food containing infected meat, or transmitted_by ticks of the genus Ornithodoros. The infection has_symptom fever, has_symptom reddening of the skin, has_symptom leukopenia, and has_symptom thrombocytopenia.