Swine flu is a respiratory disease caused by influenza viruses that infect the respiratory tract of pigs and result in a barking cough, decreased appetite, nasal secretions, and listless behavior; the virus can be transmitted to humans. Swine flu is contagious disease. It lasts about 3 to 7 days with more serious infections lasting about 9 to 10 days.
It is transmitted from person to person by inhalation or ingestion of droplets containing virus from people sneezing or coughing.
It is not transmitted by eating cooked pork products.
Symptoms of swine flu are fever (100 F or greater), cough (usually dry), nasal secretions, fatigue, and headache. Some patients may also get a sore throat, rash, body (muscle) aches or pains, headaches, chills, nausea, vomiting, and diarrhea.