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.
How long before dog heartworm symptoms show? How long can a dog have heartworms before symptoms of the dog heartworms can be seen? By: Sandra Parker El Segundo, CA Replied on 04/19/2011 The answer to this question is tricky because there are no hard and fast rules about the manifestation of symptoms of heartworm disease in dogs.