Source:http://linkedlifedata.com/resource/umls/id/C2076600
NCI: 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.,MEDLINEPLUS: <p>Swine flu is an infection caused by a virus. It's named for a virus that pigs can get. People do not normally get swine flu, but human infections can and do happen. The virus is contagious and can spread from human to human. Symptoms of swine flu in people are similar to the symptoms of regular human <a href='http://www.nlm.nih.gov/medlineplus/flu.html'>flu</a> and include fever, cough, sore throat, body aches, headache, chills and fatigue. </p><p>There are antiviral medicines you can take to prevent or t