Brussels, 05/07/2007 (Agence Europe) - The deadly H5N1 avian flu virus was the cause of death of three swans found dead on a lake in the French department of Moselle, the European Commission announced on Thursday 5 July after this had been confirmed by the French authorities. Surveillance and protection measures taken from 3 July 2007 in the zone concerned (observation and control areas around the lake) are therefore kept in place, the French Ministry of Agriculture says (EUROPE 9461). All...