Mr. Robert McLean at the Environment and Sustainable Development Committee

On October 4th, 2011. See this statement in context.

October 4th, 2011 / 11:15 a.m.

Executive Director, Habitat and Ecosystem Conservation, Canadian Wildlife Service, Department of the Environment

And that can happen as well, although something like West Nile virus—I'm trying to recall its pathway of introduction, and it's escaping me at the moment—can happen naturally as well, the spread of disease.

See context to find out what was said next.