Dr. Roger discusses heartworm disease in dogs and cats, a common but poorly understood disease. From overall risk, to treatment and prevention, Dr. Roger educates pet owners about this deadly disease. Cat owners be sure to tune in - what you will learn about heartworm in cats may surprise you. Plus, Dr. Roger takes all your call and chatroom posts live. Archive listeners can post pre-show e-mail questions up to 6 PM EST the evening of the broadcast at comments@web-dvm.net.