WASHINGTON, April 25 (Xinhua) -- Are there medicines to treat swine flu?

    Health authorities in some countries recommend the use of oseltamivir (Tamiflu) or zanamivir (Relenza) for the treatment and/or prevention of infection with these swine i nfluenza viruses. These antiviral drugs can keep flu viruses from reproducing in one's body and may also prevent serious flu complications.

    How long can an infected person spread swine flu to others?

    People with swine influenza virus infection should be considered potentially contagious as long as they are symptomatic and possible for up to seven days following illness onset. Children, especially younger children, might potentially be contagious for longer periods.