[1] Univ Guelph, Canadian Cooperat Wildlife Hlth Ctr, Guelph, ON N1G 2W1, Canada
[2] Environm Canada, Saskatoon, SK S7N 0X4, Canada
[3] Canadian Wildlife Serv Pacific Yukon Reg, Delta, BC V4K 3N2, Canada
[4] Minist Agr Pecheries & Alimentat Quebec, Quebec City, PQ G1R 4X6, Canada
[5] Univ Saskatchewan, Dept Vet Microbiol, Saskatoon, SK S7N 5B4, Canada
[6] Univ Prince Edward Isl, Dept Pathol & Microbiol, Charlottetown, PE C1A 4P3, Canada
[7] Alberta Agr & Rural Dev, Edmonton, AB T6H 4P2, Canada
[8] Canadian Wildlife Serv Atlantic Reg, Sackville, NB E4L 1G6, Canada
[9] Canadian Food Inspect Agcy, Natl Ctr Foreign Anim Dis, Winnipeg, MB R3E 3M4, Canada
[10] Canadian Wildlife Serv Prairie No Reg, Edmonton, AB T5X 1J3, Canada
[11] British Columbia Minist Agr & Lands, Abbotsford, BC V3G 2M3, Canada
[12] Canadian Wildlife Serv Quebec Reg, Quebec City, PQ G1V 4H5, Canada
[13] Univ Saskatchewan, Canadian Cooperat Wildlife Hlth Ctr, Saskatoon, SK S7N 5B4, Canada