A new report has found the incidence of mad cow disease in France is moreprevalent than previously thought. France's Food Safety Board said in apreliminary report this week that it had detected at least one case of thedisease for every 500 cattle tested in the Northwest of the country. Thepreliminary results of the government's testing programme revealed that of15,000 high-risk cows sampled between June and October, 32 produced positivetraces of BSE. These new figures arose as France decided to remove all injuredcattle from the food chain, the Farm Ministry said. The tests of France's cowswill continue for several more months with up to 35,000 cattle to be examined.