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.
In cats that show symptoms of heartworm disease, respiratory signs are the most obvious due to the lung damage caused by the heartworms. Cats typically show symptoms of heartworm disease at two time points â when the immature heartworms arrive in the heart and lung arteries and when the adult heartworms die.