Illinois Ag Connection - Prevent the Big Three Pet Parasites

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Prevent the Big Three Pet Parasites
Illinois Ag Connection - 07/19/2017

Ticks, fleas, and mosquitoes. Nobody wants these bugs on their pets or in their house. But the reasons for keeping these bugs away go beyond just avoiding pests.

"Ticks, fleas, and mosquitoes are dangerous because they can carry and cause malicious diseases," explains Dr. Gary Brummet, who heads the small animal primary care service at the University of Illinois Veterinary Teaching Hospital in Urbana and counsels pet owners on preventing pet parasites.

"Ticks are infamous for their disease-carrying capabilities. They transmit Lyme disease and Rocky Mountain spotted fever and can also pass along protozoa like Cytauxzoonosis and many others," says Dr. Brummet.

Dogs are extremely susceptible to Rocky Mountain spotted fever, which typically causes fever, vomiting, diarrhea, and abdominal pain. When left untreated, Rocky Mountain spotted fever can lead to death.

Cytauxzoonosis is a deadly disease caused by protozoa that affect domestic cats. It begins with nonspecific signs, including lethargy and a poor appetite; the disease will progresses to an extremely high fever and death if not treated quickly.

Lyme disease is a bacterial disease that can affect dogs, horses, people, and potentially cats. It can cause neurological issues, joint disease, and overall lameness. In its most severe forms, it causes renal failure and ultimately death.

In the past this disease was more prevalent in the northeast, but due to increasing deer populations (an ideal tick host) and reforestation providing prime tick habitat, Lyme spreading ticks have increased in number and are becoming more and more prevalent here in the Midwest as well as other parts of the country they were not in even just 20 years ago.

This year preventing tick bites is going to be even more relevant as the Centers for Disease Control and Prevention has predicted high tick populations, likely due to the mild winter.

"Fleas may be less known among pet parasites for causing deadly diseases, but are detrimental nonetheless," says Dr. Brummet. It is not uncommon for dogs with skin allergies to be reacting to a flea infestation, even if they have very few fleas. Fleas also carry tapeworms, which work their way into your pet's digestive system when the fleas are swallowed while the animal grooms itself.

Additionally, fleas can easily infest a house, which can be very unpleasant. Dr. Brummet says, "Once fleas get in the house, they can be hard to get rid of, so it is easiest to stop them before they start. This means protecting your pets with preventive medication."

Heartworms are the last of the big three pet parasites most commonly discussed, and they are exactly what their name implies: worms that live in your pet's heart.

"Heartworms are transmitted by mosquitoes. Any time pets are outside, they are at risk. Heartworms can grow to eight inches in length and can spread from the heart to the lungs," explains Dr. Brummet.

The signs of a heartworm infestation often start subtly; the animal will begin to tire easily when exercising and may cough. If left untreated, the worms will create such a burden on the heart that the heart cannot perform its job and the animal will die. In cats, heartworms can cause sudden death because there were no discernable signs of disease.

If you have questions about fleas, ticks, heartworms, or other pet parasites, talk to your veterinarian.

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