Ducks and bird flu

Just a pointer

http://news.netdoctor.co.uk/news_detail.php?id=15130548&date=11/01/2006


Quote:

"Dr Rob McCracken from the British Veterinary Association told the Today programme that ducks were the birds most likely to pass the virus on to domestic poultry before it could be detected as they show no symptoms of the disease"


They shed virus before they look ill it seems.