Britain was preparing last night to send a team of vets to Hungary to help pinpoint the source of the Bernard Matthews bird flu outbreak, as it emerged that inspectors only found out about the suspect turkey imports by accident. A minute of a government meeting last weekend showed that the Hungary link had only been made after a wrapper was discovered in a bin at the Suffolk plant. The wrapper indicated that the plant had been receiving meat from a Hungarian slaughterhouse just 20 miles from the bird flu outbreak in Hungary. Bernard Matthews had until then indicated that its Hungarian imports came from a site more than 100 miles from the affected area.