Top Parasites Sites

All about intestinal parasites: Canine parasites exist internally and externally. Many are species specific and exist only on the dog. Intestinal parasitism exists in all ages of dogs with the greatest frequency in puppies. Types and incidence of parasitism varies with geographic regions. Additionaly, age and immune status are significant factors influencing gastrointestinal (GI) parasitism. This article concerns itself with canine GI parasites of North America.
Does your dog have heartworm: Rutgers University page about heartworm, its life cycle, symptoms, risk to humans and prevention.