As resident Canada goose (Branta canadensis) populations increase throughout North America, so do the health and environmental risks associated with goose feces. Previous studies suggest that goose feces may be a conduit for transmitting Giardia, a protozoan that is parasitic to humans. We surveyed fecal droppings from free-ranging resident Canada geese for Giardia spp. at 9 sites in the Triangle area (Raleigh, Durham, and Chapel Hill) of North Carolina in 2007 and 2008. Samples (n = 234) were tested using the ProSpect® Giardia EZ Microplate Assay, and there were no positives. Our results indicate that risk of zoonotic giardiasis from Canada goose feces in the Triangle area of North Carolina is low.
Ayers, Christopher R.; DePerno, Christopher S.; Moorman, Christopher E.; Stibbs, Henry H.; and Faust, Angela M.
"Survey of Canada Goose Feces for Presence of Giardia,"
Human–Wildlife Interactions: Vol. 8
, Article 10.
Available at: https://digitalcommons.usu.edu/hwi/vol8/iss2/10