Heart-to-Heart About Dog Heartworms & Mosquitoes

heartworms and mosquitoes

I hate mosquitos not only because they’re itchy aggravation, but these nasty vampires spread deadly dog heartworms. That can make your dog sick or worse—it could kill her. Dogs are the natural host–but they also can affect cats–and heartworms have been a problem at least since 1922 when they were first discovered. Today heartworms are found all over the world.

The heartworm Dirofilaria immitis belongs to a group of parasites called filarids, and is a type of roundworm. They live in the right heart chambers and pulmonary arteries—the lungs—of infected dogs. As you can imagine, lungs and heart filled with worms can damage and interfere with normal organ function. You won’t be able to tell if your puppy has heartworms. You can’t see them the way you can fleas or ticks. And your dog won’t even act sick until she’s been infected for quite a while.

cute funny dog running on the grass with stick

Hunting dogs that spend lots of time outdoors are at highest risk.

DOG HEARTWORMS ON THE RISE

Despite the availability of effective and easy to use heartworm preventive options, the disease appears to be on the rise. In just two years, from 2013-2015, there was a 166 percent increase in reported positive heartworm cases, according to the Companion Animal Parasite Council (CAPC). Additionally, the American Heartworm Society (AHS) has tracked the geographic spread of heartworm disease to all 50 states and its increased prevalence in several regions of the country.

So what’s a pet parent to do?

dog heartworms

UPDATE ABOUT DOG HEARTWORMS & MOSQUITOES

A groundbreaking study by John McCall, MS, PhD addresses this concern, investigating the effectiveness of stopping heartworm disease at the buggy transmission source. His new research shows that a multi-modal approach (adding mosquito repellents and insecticides alongside standard heartworm preventive protocols), offers even better protection for our dogs.

I reported on this study back in August 2016, and am updating this blog post based on new information. The study, sponsored by CEVA, explored the efficacy of a new “Double Defense” protocol. John McCall is a professor emeritus in the Department of Infectious Diseases at the University of Georgia College of Veterinary Medicine. After fighting heartworm the same way for decades, McCall says it’s time for a new approach that includes fighting the mosquito as well as the heartworm.

PREVENTING VS TREATING HEARTWORMS

Preventives that address heartworms are one important part of canine health care. But until recently, preventing the vector (mosquito) hasn’t gotten the attention it deserves, according to Byron Blagburn, MS, PhD, DAVCM, a professor of parasitology,, researcher, and author of the mosquito control guidelines.

Recently, the Companion Animal Parasite Council (CAPC) included more information on how to control mosquitoes, adding science-based evidence to these guidelines on mosquito control. Learn more at GoodNewsForPets.

According to the Heartworm Incidence Survey from the American Heartworm Society, The average number of dogs diagnosed per clinic in 2016 rose by 21.7 percent over 2013 numbers (date of the last survey). AHS president and veterinarian Dr. Christopher Rehm says that the distribution of cases hasn’t dramatically changed, 24% of respondents said the average number of positive dogs has increased since 2013.

2017 Heartworm Predictions–Keep Dogs Safe!

LEARN MORE ABOUT DOG HEARTWORMS

Please ask YOUR veterinarian about how you can best protect your dogs from mosquitoes and dog heartworms. Learn more about Dr. McCall’s CEVA-funded study in this short video.

Several years ago, I interviewed Dr. Wallace Graham about prevention, treatment and more in my Pet Peeves radio show. Much of this information is still valid, so find out more about how to keep cats and dogs safe from heartworm disease in PET PEEVES, HEART-TO-HEART ABOUT HEARTWORMS.


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A mosquito bite is more than just an ouch! That bite transmits diseases - possibly Zika to people and heartworms to our beloved pets. There are ways to reduce the mosquito population around your home, prevent bites and protect the whole family. And, a new study suggests a "Double Defense" protocol may protect your pet best. Learn more at www.fightheartwormnow.com (PRNewsFoto/Ceva Animal Health)

A mosquito bite is more than just an ouch! That bite transmits diseases – possibly Zika to people and heartworms to our beloved pets. There are ways to reduce the mosquito population around your home, prevent bites and protect the whole family. And, a new study suggests a “Double Defense” protocol may protect your pet best. Learn more at www.fightheartwormnow.com (PRNewsFoto/Ceva Animal Health)


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