Learn how to identify common dog illnesses, infections, and parasites—plus when to contact a vet and how to protect your pet with preventive care.

Parasitic infections happen when parasites enter a human or animal body, taking nutrients from the body for themselves.

Symptoms of parasite infection can include abdominal pain, bloating, gas, diarrhea, anal itching, unexplained weight loss and exhaustion. However, these are common to a number of other conditions.

A New York woman, 53, was left blind in one eye after wearing contact lenses in the pool, leading to her contracting a parasite, acanthamoeba keratitis (AK), that causes damage to the cornea.

UC Riverside scientists found a deadly dog parasite in the Colorado River in California. See symptoms of worm infestation to look for in pets.

Some people claim a parasite cleanse of herbs and supplements can treat parasitic infections. Here’s what you need to know about how they work and what the research says.

Parasites can be scary, but they can also be harmless and interesting. Here is an overview of just some of the many parasites in Lake Champlain ...

New research is underway at the Indiana University School of Medicine to turn a common enemy of the brain into a friend in the fight against brain diseases. Toxoplasma gondii, a parasite most ...

Intestinal parasites are organisms that live in various parts of the body, but mostly in intestinal walls. The symptoms of intestinal parasite differ depending on the type of parasite.

ZEELAND, MI -- Ottawa County health officials say 11 illnesses are linked to a common farm parasite and a Zeeland area educational farm.

UC Riverside scientists found a deadly dog parasite in the Colorado River in California. See symptoms of worm infestation to look for in pets.