Ixodes cookei is a species of tick in the genus Ixodes. It is normally a parasite of carnivorans, such as raccoons, foxes, and weasels, but has also been recorded on the groundhog (Marmota monax) and the marsh rice rat (Oryzomys palustris). In the northeastern United States, it is a vector of Powassan virus. See also List of parasites of the marsh rice rat References Literature cited cookei Arachnids of North America Animals described in 1869