 The primary wildlife reservoirs for Trypanosoma cruzi in the United States include <unk> , raccoons , <unk> , squirrels , <unk> , and mice . <unk> are particularly important as reservoirs , because the parasite can complete its life cycle in the anal glands of this animal without having to re @-@ enter the insect vector . Recorded prevalence of the disease in <unk> in the U.S. ranges from 8 @.@ 3 % to 37 @.@ 5 % . 
