Yes, dogs can get heartworms in the winter. As heartworm larvae spread through mosquito bites, some people believe dogs can't get heartworm in the winter, as mosquitoes are inactive. However, according to the Food and Drug Administration (FDA), it's essential you deworm your dog year-round.
Spring time is notoriously known as “heartworm season” for many pet owners as well as “flea and tick season”. There is truth to this! Springtime is when all of the creepy crawlies begin to come out of their hibernation and start infecting our pets (and sometimes us!) to start their lifecycles.
While the risk of heartworm is more prevalent in spring and summer when there are more mosquitos, a pet can get heartworm any time of year.
Heartworm in dogs is prevalent across Australia and can be a serious and potentially fatal condition. Knowing how to prevent heartworm is essential for all dog owners.
Signs of heartworm disease may include a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss. As heartworm disease progresses, pets may develop heart failure and the appearance of a swollen belly due to excess fluid in the abdomen.
A veterinarian uses blood tests to check a dog for heartworms. An antigen test detects specific heartworm proteins, called antigens, which are released by adult female heartworms into the dog's bloodstream. In most cases, antigen tests can accurately detect infections with one or more adult female heartworms.
Six months after they bite your dog and inject those larval microfilariae heartworms into your dogs, it takes that six months for them to develop into that adult worm. So generally, it's anywhere from six to 12 months after they've been bitten; you may start noticing signs in your pet.
Heartworm disease, as the name suggests, are worms that infect the heart. In Australia, the prevalence of heartworm disease is highest in subtropical/tropical areas (Darwin up to 100%, Brisbane 34%) and northern temperate areas (Sydney 25%). Dogs are the most important hosts, but cats may also be susceptible.
Urban areas such as Seattle Boise, Idaho in the Northwest; Bismarck, North Dakota in the Upper Midwest; and Tucson, Arizona, in the Southwest also saw significant increases in heartworm rates.
Although there are fewer mosquitoes in the winter, there is still a risk that your pet could get heartworms if you stop giving heartworm prevention medication during this season. That's one reason veterinarians strongly recommend pets receive heartworm prevention medication year-round.
Most of the monthly heartworm medicines have a safety factor of at least 15 days of protection if a dose is missed. This means that if you're just a week or two late, your pet is likely still within that window of protection and would be unlikely to become infected during that time.
If you forget a month of preventative, make sure to give the next 2 doses on time to "catch up" for that missed month. If you miss several months in a row, you should give your vet a call for advice on when to plan for the next heartworm test and how to get started back on preventatives.
Can puppies get heartworms? Yes. If a mosquito with infective larvae bites a puppy, he or she will likely develop heartworms. Once infected, it takes about six months for heartworm larvae to become an adult heartworm.
Because heartworms must be eliminated before they reach this adult stage, it is extremely important that heartworm preventives be administered strictly on schedule (monthly for oral and topical products and every 6 months or 12 months for the injectable).
No one wants to hear that their dog has heartworm, but the good news is that most infected dogs can be successfully treated. The goal is to first stabilize your dog if he is showing signs of disease, then kill all adult and immature worms while keeping the side effects of treatment to a minimum.
Heartworm disease is a very serious parasitic disease that has the potential to be fatal for your dog if he is not treated quickly. This parasite is a worm that can grow up to a foot long and lives inside the heart, lungs, and associated blood vessels of an infected animal where it will reproduce over and over.
Early signs could be shortness of breath, loss of stamina, or a nagging, dry cough. As the disease progresses, breathing becomes more difficult, and in severe cases the abdomen may swell with fluid. Your dog could become lethargic and lose weight and their appetite.
Dogs can live for at least six to seven months after becoming infected with heartworms. This is because it takes that long for adult heartworms to grow. However, determining the exact date of infection is challenging.
The states with the highest numbers of incidences of heartworm disease in dogs were Mississippi, Louisiana, South Carolina, Arkansas, and Alabama, all states known for their humid climates.
Heartworm (Dirofilaria immitis) in dogs is considered endemic in Australia, but the clinical heartworm disease caused by the heartworm is rare and prevalence is low.
Up to 20kg – $141.00. Up to 35kg – $186.75. Up to 50kg – $232.50. Heartworm test – $67.50.
Prognosis: heartworm treatment success rates
With the three-dose adulticide protocol described above, in conjunction with doxycycline and macrocyclic lactones as recommended by the American Heartworm Society, 98% of dogs will be cleared of heartworm infection.
Myth #3: If my pet has heartworms, I will see them in her feces. Although many worm types, such as roundworms and tiny hookworms, are shed in your pet's feces, heartworms do not live in the gastrointestinal (GI) tract, and are not found in feces.
Most dogs can be safely leash-walked during the treatment recovery period and providing appropriate chew toys can help relieve some of that stored up physical energy.
Dogs with heartworm infections will feel weaker, and will find it harder to remain active, even in low-energy activities. Weight loss and loss of appetite. In more advanced stages of heartworm infections, your dog will find it hard to complete normal physical tasks like eating.