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.
When heartworms infect a cat, they primarily affect the lungs, causing a condition known as Heartworm-Associated Respiratory Disease (HARD). They can cause permanent lung damage in both cats and dogs. Symptoms include coughing, wheezing, shortness of breath, rapid breathing, vomiting, and weight loss. Symptoms may not show up until the disease is quite advanced. Because they are spread by mosquitoes, heartworms are a particular problem in any area where mosquitoes thrive--including Texas and the U.S. Gulf Coast.