Swine flu is a respiratory disease in pigs caused by influenza A viruses. It can spread from person to person through coughing, sneezing, or touching contaminated surfaces. Common symptoms include fever, cough, sore throat, and body aches. While most people recover within a week, some may develop complications requiring medical attention. The virus can live on surfaces for over 2 hours, so frequent hand washing is important. There is currently no vaccine for the new H1N1 strain of swine flu, though antiviral drugs can help treat infections.