Tesco’s spaghetti bolognese tests positive for horse DNA

LONDON (Reuters) – Tesco, Britain's biggest retailer, said on Monday it had found horse DNA exceeding 60 percent in some of its own-brand frozen spaghetti bolognese meals withdrawn from stores last week. Tesco said tests carried out since pulling the product last Wednesday had identified the presence of horse DNA, with most positive results at a trace level of less than one percent. However, three tests showed horse DNA levels of over 60 percent. …