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.
Heartworm Disease Symptoms. Heartworms can live in the dog for up to five years. Initially, the dog may not show any ill effects, but symptoms develop and grow worse over time. Common signs are coughing, shortness of breath, and reluctance to exercise. Infected pups may faint after exuberant play or games.