Thirteen of 265 deer (4.9 percent) from central Utah were positive for Elaeophora schneideri, and 180 (67.9 percent) were infected with Onchocerca cervipedis. The rate of infection for E. schneideri and O. cervipedis increased significantly with age of the host (chi-square of 17.5 and 15.5, respectively, p < 0.005). The lack of elaeophorosis in elk from the region is presumably due to the low density of the parasite in mule deer.
Jensen, Lauritz A.; Pederson, Jordan C.; and Andersen, Ferron L.
"Prevalence of Elaeophora schneideri and Onchocerca cervipedis in mule deer from central Utah,"
Great Basin Naturalist: Vol. 42
, Article 3.
Available at: http://scholarsarchive.byu.edu/gbn/vol42/iss3/3