Here is a chronology of key events since the disease was found last week: Aug. 3, 2007 - Britain's agriculture department confirms finding the virus of foot and mouth disease in cattle on a farm near Guildford in Surrey, close to London.
Aug. 4 - The United States, Ireland and Japan ban British pork imports. Britain tries to contain the outbreak by culling cattle at the farm.
Aug. 5 - A laboratory run by Merial Animal Health Ltd, jointly owned by US drugmaker Merck & Co. Inc and France's Sanofi-Aventis SA, around 5 miles (8 km) from where a herd of cattle was infected, are sealed off under suspicion.
Aug. 6 - The European Union, South Korea and Russia ban British livestock, meat and dairy exports.
Aug. 7 - Veterinarians confirm a second case of the disease within a 10-km radius (6 mile) protection zone set up around the farm where the disease first broke out.
Source: Reuters;