WeAreTheKey

PARASITES OF PETS MAY BE CONTAGIOUS TO HUMANS AS WELL
Did you know that between 1 and 3 million people in the United States are
infected with dog and cat roundworms every year? Many suffer from flu-like
symptoms, but over 700, mostly children, suffer blindness or permanent visual
impairment as a result.
Many parasites, including roundworms, hookworms and Giardia, are infectious to
people as well as pets. In dogs and cats, roundworm eggs hatch in the intestine. The
larvae then migrate through the intestine into the abdominal cavity, feeding on tissue as
they go. Then they travel through the liver and into the lungs. The larval worms are
coughed up and swallowed, returning to the intestines to grow into adult worms, and shed
eggs in the stool for the next animal to pick up. In people, the larvae get confused
because we aren’t their natural host. They may end up in the brain, spinal cord or eyes,
instead of the lungs.
Hookworm larvae get into a pet by burrowing into the skin of the paws or feet.
They will do this in people, too, but again they get lost. They usually burrow for a while
in the skin and underlying tissue, causing a severe rash and disfiguring scars. Since
children are more likely to be outside barefoot, they are most frequently affected.
Giardia are one-celled protozoal parasites, not worms. They survive for a long
time in ponds, streams, puddles of water or damp soil. They are shed by dogs, cats, deer
and many other animals, and are contagious to people as well. It has been estimated that
nearly 36 to 50 percent of puppies, 10 percent of adult dogs and up to 100 percent of dogs
in breeding kennels are infected with Giardia, which causes vomiting and diarrhea in both
people and pets. A new vaccine for Giardia has come on the market recently, and may be
recommended for owners who breed their pets or whose dogs swim frequently.
Intestinal parasites are serious threats to pets and family members alike. We
know it’s not much fun to pick up a pet’s poop and bring it to the veterinary clinic.
However, it’s one of the most important things you can do to keep both your pets
and your family members safe and healthy. We would also like to remind you to
thoroughly wash your hands after cleaning your cat’s litter pan, cleaning your dog’s stool
from the yard, or after gardening. Wash your children’s hands as well when they come in
from the yard. Pick up stool from your grass often, and check children’s sandboxes for
stool from outdoor cats before they play in it (or better yet, keep the sandbox covered
when it’s not in use.)
All dogs and cats should have a fecal exam at least once a year. The more a pet is
exposed to other pets (at a dog park or training class, for example), the more often testing
is recommended. Twice yearly stool checks are a good idea for dogs with high exposure.
Outdoor cats, or those who hunt and eat rodents and birds, should be checked or
dewormed frequently. Younger and elderly pets are at higher risk of becoming ill from
parasites, so puppies, kittens and senior pets should also be checked more often.
If your veterinary clinic does find parasites in your pet’s stool, they will prescribe
the most effective medication available to treat the problem. Pets with a heavy parasite
infestation may be thin, mopey, have dry skin and dull haircoats, and suffer from
vomiting and diarrhea.