Gates is co-author, with Chuck Collins, of the book Wealth and Our Commonwealth: Why America Should Tax Accumulated Fortunes, a defense of the policies promoted by the estate tax. He married Mary Maxwell Gates, whom he met at UW, and who died in 1994. They had three children: Kristianne, Bill, and Libby.
Symptoms of heartworm disease may include loss of appetite, lethargy, exercise intolerance, weight loss, fever, dyspnea (difficult, labored breathing, shortness of breath), coughing, weakness, dull dry coat, and hemorrhage. There are no symptoms at all until the disease is advanced.
However, if the excessive panting does not stop in a few days, get the dog to the vet for a check-up. Heartworm Heartworm is caused by the parasite Dirofilaria immitis transmitted by mosquitoes. The typical signs of heartworm infestation are exercise intolerance, a soft, deep cough, weight loss, and panting.