Heartworms - a real and present danger
Heartworm disease is transmitted from dog to dog through mosquitoes. It affects thousands of dogs throughout the United States and can be fatal if left untreated. Symptoms can include coughing, sluggishness and difficulty breathing, though some dogs might show no outward, clinical signs at all. Heartworms can live in an infected dog for up to 7 years! During all that time, the worms are living, breeding, and dying in your dog's blood stream.
Hookworms - a deadly burden
Hookworms attach to the small intestine of your dog and suck blood. Hookworms can infect people too.
Roundworms - beyond the "yuck" factor
Roundworms are among the most common intestinal parasites of dogs. They can infect over 90% of puppies under 3 months of age. Dogs infected with roundworms may experience constipation, vomiting, diarrhea or may have a pot-bellied appearance. Roundworms can inffect people too.
Whipworms - dangerous & deadly
Dogs can become infected with these dangerous parasites by ingesting whipworm eggs from a contaminated environment. Whipworms eggs remain viable for up to 7 years in places like your yard, dog parks, dog beaches, and other pet-friendly areas. Many whipworm infections are asymptomatic, but can result in bloody diarrhea, weight loss, dehydration and in severe cases, death.
Tapeworms - just plain "gross"
Dipylidium is tapeworm of Dogs and Cats. People become infected when they accidentally swallow a flea infected with tapeworm larvae; most reported cases involve children. Read More... follow link below to main CDC Dog and Cat Parasite page and access "T" on A to Z menu at top of page.
Additional information about the above parasites and other less-common parasites of Dogs. this is the main page for CDC Dog and Cat parasites just use the A to Z index at the top of the page to look up Dog parasites: http://www.cdc.gov/parasites/animals.html