Pet News

How do dogs get heartworms?

Heartworms are transmitted to dogs from mosquito bites.

• When an infected mosquito bites a dog, heartworm larvae enter the dog's body. Over time, the larvae mature and travel to the heart and lungs.
• Adult heartworms can grow up to 14 inches in length- causing organ damage and, in some cases, death.

 
It's important to understand that heartworm disease has usually reached an advanced stage by the time your dog shows signs of illness, and it is possible that the dog may never show signs of an infection. Treatment is risky, expensive, and may not be effective.
 
Signs of a heartworm infection

• Coughing
• Difficulty breathing
• Sluggishness 
• Less energy for exercise
• Loss of consciousness
• Reduced appetite and weight loss

There are many medications that treat and prevent various parasites in dogs.Common types of heartworm preventatives include pills, chewables and topically applied liquids, you need to administer these every month. There is also a single-dose injection that can protect your dog from heartworm infection continuously for 6 months.
Don't be confused-only your veterinarian can prescribe heartworm preventatives.
Dogs and puppies should be tested for heartworm infection prior to beginning a heartworm disease prevention program. The American Heartworm Society and Companion Animal Parasite Council highly recommend annual testing for heartworm to insure that your pet is free of heartworm infection.
 
Due to the prevalence of heartworms in Texas as indicated by this map from the American Heartworm Society, heartworm prevention is crucial EVERY month.

Dr. Les Mayes
Fort Worth Veterinarian | South Meadow Animal Clinic | 817-370-5566

3020 Sycamore School Rd
Fort Worth, TX 76133