Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 10, Number 12—December 2004
Research

West Nile Virus Outbreak in North American Owls, Ontario, 2002

Ady Y. Gancz*Comments to Author , Ian K. Barker*, Robbin Lindsay†, Antonia Dibernardo†, Katherine McKeever‡, and Bruce Hunter*
Author affiliations: *University of Guelph, Guelph, Ontario, Canada; †Health Canada, Winnipeg, Manitoba, Canada; ‡Owl Foundation, Vineland, Ontario, Canada

Main Article

Table 3

Exposurea rates and WNV-related death rates for 12 species of owls kept outdoors at the Owl Foundation property during WNV outbreak, 2002b

Speciesc Exposure rate (%) WNV-related DR (%)
Snowy Owl (Bubo scandiacus) 100 100
Northern Hawk Owl (Surnia ulula) 100 100
Northern Saw-whet Owl (Aegolius acadicus) 92.3 92.3
Great Gray Owl (Strix nebulosa) 100 91.3
Boreal Owl (Ae. funereus) 90.9 90.9
Northern Pygmy Owl (Glaucidium gnoma) 50 16.7
Short-eared Owl (Asio flammeus) 100 12.5
Flammulated Owl (Otus flammeolus) 22.2 11.1
Great Horned Owl (B. virginianus) 100 4.5
Burrowing Owl (Athene cunicularia) 90 0
Eastern Screech Owl (Megascops asio) 72.7 0
Barn Owl (Tyto alba) 80 0
All species 84.3 43

aExposure defined as positive reverse transcription–polymerase chain reaction result (for birds that died during the outbreak) (Table 1) or positive serologic results (for birds that survived the outbreak) (Table 2).
bWNV, West Nile virus; DR, death rate.
cOnly species for which n > 6 are shown.

Main Article

Page created: April 14, 2011
Page updated: April 14, 2011
Page reviewed: April 14, 2011
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external