Deer foaming at the mouth, dropping dead in San Juan Islands By AP News Staff Wildlife officials in Washington state have confirmed wild deer are suffering from an animal disease on the San Juan Islands after several residents reported dozens of strange deer deaths over the past few weeks. Dr. Kristin Mansfield, a veterinarian for the Washington Department of Fish and Wildlife, said the disease was identified as adenovirus hemorrhagic disease, The Seattle Times reported Friday. Residents on the picturesque islands, about 70 miles northwest of Seattle, reported more than 50 dead deer to state and local wildlife officials since early May. Resident Aimee Beveridge told The Seattle Times on Friday that she discovered three deer in as many weeks on her 10-acre property.