US: Four swans die from avian influenza virus
02.02.2012
Four swans found dead in Massachusetts had the avian influenza virus, authorities said on Wednesday, they were tested positive of H1 strain.
State and federal wildlife officials say four of the 12 swans found dead at a Westborough pond recently have tested positive for avian influenza H1.The state Department of Energy and Environmental Affairs and the US Department of Agriculture’s Wildlife Services collected the swan carcasses from Mill Pond in December after a resident reported seeing them floating near shore.