Roundworms
                           (Toxocara species)

    Roundworms (Toxocara species) are active in the intestines of
puppies, often causing a pot-bellied appearance and poor growth.
You may not suspect that your puppy has roundworms until you find
some either in vomit or stool.
Roundworms look like spaghetti and can
grow up  to seven inches in length. Female roundworms can produce
200 thousand eggs in a day, eggs that are protected by a hard shell
and can exist in the soil for years. Dogs become infected by ingesting
worm eggs from contaminated soil. The eggs hatch in the intestine and
the resulting larva are carried to the lungs by the bloodstream.
  Roundworms do not typically infest adult dogs and cats.
However, the larvae can encyst in body tissue of intact female and
activate during the last stages of pregnancy to infest puppies. Worming
the mother has no effect on the encysted larvae and cannot prevent
the worms from infecting the puppies.
  • A fecal test must be performed to find intestinal parasites. The
    veterinarian will look for roundworm eggs under the microscope.
  • To rid the body of roundworms, a deworming medication is
    given. Many flea control and/or heartworm prevention products
    provide a monthly deworming which is especially helpful in
    minimizing the risk of infection.

For more in-depth information on roundworms:
http://bakerinstitute.vet.cornell.edu/cahrc/Roundworm.htm
*For More Information Please Contact Your Vet!*
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