JUST ONE BITE
FROM AN INFECTED MOSQUITO
IS ALL THAT IT TAKES1

Dog and mosquitos
Dog with X Eyes

HEARTWORM DISEASE IS A FATAL YEAR ROUND
RISK FOR YOUR DOG

Infected mosquitos transmit heartworms that grow and reproduce in your dog's heart and blood vessels of the lungs. Heartworms grow to be up to a foot long, and can cause severe lung disease, heart failure, organ damage and even death. 

Cash

TREATING HEARTWORM CAN
COST UP TO 15X
MORE THAN 1 YEAR OF PREVENTION2

Treatment can also be dangerous.
Here's what you can expect:

1

Clinical
Signs

Dog on Leash

Clinical Signs

Dog can exhibit sickness with coughing, distended abdomen, listlessness, weight loss and difficulty breathing.

2

Blood
Test

Blood Test

Blood Test

To confirm the presence of heartworms.

3

Evaluation

Stethoscope

Evaluation

A thorough medical exam is required, including radiographs and possibly ultrasound to determine the extent of the disease.

4

Arsenic Based
Medication

Arsenic

Arsenic-Based Medication

In separate appointments, a series of injections of a potent arsenic-based medication is administered to kill the heartworms.

5

Multi-Day
Hospitalization

Hospital

Multi-Day Hospitalization

A stay up to 3 days may be recommended during the heartworm treatment. The dog must be kept inactive and closely monitored.

6

Up to 2 Months
of Confinement

Cage

Up To 2 Months of Confinement

To keep the dead heartworms from going to the lungs and causing a life-threatening situation, the dog must not exercise and be kept confined for up to 2 months.

7

Survival

Thumbs Up

Survival

Months later, tests are required to confirm the success of the treatment. Not all dogs will survive this grueling treatment regimen.

THE HEARTWORM DISEASE CYCLE

Cycle
1. Infected Dog

A new dog gets infected by a mosquito bite.

Cycle
2. Worms Reproduce

Adult worms live and reproduce in the heart and blood vessels of the lungs. It takes 6 months to test positive for heartworms after the offending mosquito bite.

Cycle
3. Untreated Dog

If untreated, a heartworm infected dog can progress to severe disease, or even death, and can infect even more mosquitoes.

Cycle
4. Infected Mosquito

Infected mosquitoes become a threat for any unprotected dog.

HEARTWORM IS A THREAT IN ALL 50 STATES

Climate changes, family relocation and vacation travel have allowed heartworm-carrying mosquitos to expand their range3. Tri-Heart® Plus is easy to administer year-round to make sure your dog is always protected.

Heartworm growth in the U.S. from 2001 through 20134.

(Move slider to compare)

Map of Heartworm positive cases in 2013*
Map of Heartworm positive cases in 2001*

Heartworm Cases in 20014

Heartworm Cases in 20134

Average number of cases per reporting clinic

< 1 Case per clinic

1-5 Cases per clinic

6-25 Cases per clinic

26-50 Case per clinic

51-99 Cases per clinic

100+ Cases per clinic

Spring, Summer, Fall or Winter — Every Season is
HEARTWORM SEASON

No matter what the season, products like Tri-Heart® Plus should be administered year-round without missed or late doses for effective heartworm protection.

Flowers
Sparkles

Start Saving With Tri-Heart® Plus Today

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1 Adopted from Think 12 Infographics at the American Heartworm Society webpage. For detailed information, please visit https://heartwormsociety.org/veterinary-resources/client-education/think-12#think-12-infographics (accessed May 18, 2017).

2 Tri-Heart® Plus pricing for 40-lb dog using American Heartworm Society average heartworm treatment cost of $1200–$1800.  https://www.heartwormsociety.org (accessed May 18, 2017).

3 American Heartworm Society.  https://www.heartwormsociety.org (accessed May 18, 2017).

4 Incidence maps used with permission from the American Heartworm Society,  https://www.heartwormsociety.org/pet-owner-resources/incidence-maps. (accessed May 18, 2017)


All dogs should be tested for heartworm infection before starting a preventive program. In a small percentage of ivermectin/pyrantel treated dogs, digestive and neurological side effects may occur.


HEARTGARD is a registered trademark of Merial.