Mondo Description An acute viral respiratory infection caused by a strain of influenza virus which is endemic in swine (pigs). Rarely reported in humans prior to 2009, the disease is caused by a mutated strain of swine influenza A (H1N1) virus. It is highly contagious and spreads mainly through coughing and sneezing. Signs and symptoms include fever, chills, coughing, sore throat headache, muscle ache, and generalized weakness. Antiviral medications are most effective in the first two days of the illness.

Disease Ontology Description An influenza that results_in infection located_in respiratory tract of pigs and humans, has_material_basis_in Influenza C virus, or has_material_basis_in Influenza A virus subtypes (H1N1, H1N2, H3N1, H3N2, and H2N3), which are transmitted_by direct contact with infected pigs. The infection in humans has_symptom fever, has_symptom lethargy, has_symptom lack of appetite, has_symptom coughing, has_symptom runny nose, has_symptom sore throat, has_symptom nausea, has_symptom vomiting, and has_symptom diarrhea.