LONDON/BERLIN (Reuters) - Imported fenugreek seeds from Egypt may be the source of highly toxic E. coli outbreaks in Germany and France that have killed at least 48 people, according to initial investigations by European scientists. Over 4,000 people across Europe and in N. America have been infected in the outbreak so far recorded. Almost all of those sickened lived in Germany or had recently travelled there. The German outbreak and a smaller cluster of E. coli centered around the French city of Bordeaux have both been linked to sprouted seeds.