Tick paralysis is one of the most serious veterinary emergencies in Australia, and it moves fast. One day your pet seems a little off. The next, they cannot stand. Within 24 to 48 hours, they could be in respiratory distress. That is how quickly this condition escalates, and that is exactly why every pet owner in Keysborough needs to understand it before the warmer months kick in.
Here in Melbourne, our pets are not living in typical tick country. But that does not mean they are safe. Paralysis ticks hitch rides on camping gear, on clothing, and on pets returning from holidays along the coast. They travel. And when they land on your dog or cat, the clock starts ticking.
This guide covers everything: what a paralysis tick looks like, how the toxin works, what symptoms to watch for in dogs and cats, what to do if you find one, and how tick treatment and paralysis tick prevention can keep your pet safe this season.
What Is a Paralysis Tick and Where Do They Come From?
The paralysis tick, scientifically known as Ixodes holocyclus, is the most dangerous of all species of ticks found in Australia. It is distributed along the east coast of Australia, where it infests dogs, cats, and a wide range of other animals, predominantly during spring and early summer.
In Victoria, paralysis ticks are found along the coast as far south as Bairnsdale and Sale. However, they can find their way into camping equipment and clothing and hitch a ride into suburban Melbourne. That means pets right here in Keysborough, Dandenong, Springvale, and Noble Park are not automatically in the clear, especially if they have been on a road trip, a camping holiday, or even visited a friend’s property near the coast.
How to tell a paralysis tick apart from other ticks:
1. Size: Unfed, they are about the size of an apple seed. Once engorged with blood, they can grow to the size of your little fingernail.
2. Colour: A blue-grey colour when engorged, which is one of the more recognisable features.
3. Shape: Oval body, eight legs, with a distinctive hard shield behind the head.
4. Location on the pet: Research from the University of Queensland found the paralysis tick was located on the head, neck, or ears in 73% of dog patients and 63% of cats.
When are they most active?
According to PetSure data from the last five years, tick paralysis cases increase from August, peaking in October, November, and December, before decreasing by February. This is your tick season window: late winter through to early autumn. That said, tick paralysis can occur year-round in tick-prone areas, so do not let your guard down entirely.
How Tick Paralysis Works: What the Toxin Does to Your Pet
Understanding how the tick toxin works helps explain why time matters so much.
When a paralysis tick attaches to your pet’s skin and begins to feed, it injects a neurotoxin called holocyclotoxin through its saliva. The toxin is produced by the tick’s salivary gland approximately 72 hours following attachment. Clinical signs in dogs and cats include altered voice, laboured breathing, and ascending flaccid paralysis, eventually leading to respiratory failure and death.
In plain terms: the longer a tick feeds, the more toxin floods your pet’s system. The neuromuscular signals between the brain and the muscles get disrupted. First the back legs go. Then the front legs. Then the muscles that control breathing. Once it reaches that point, it is a life-threatening emergency.
Why are smaller pets more vulnerable?
A smaller body means a higher concentration of toxin relative to body weight. Small dogs and cats can deteriorate much faster than large breeds, which is why cat owners especially need to be vigilant. Cats often mask their symptoms until they are quite unwell.
Research analysing nearly 15,000 cases of tick paralysis from 1999 to 2020 found that 9% were fatal. That is not a small number. And according to the University of Queensland, an average tick season still means 4,000 to 5,000 vet visits in eastern Australia are tick-related, with 1 in 10 of those pets dying from the toxin or being euthanised because they cannot be saved.
Symptoms of Tick Paralysis: A Progression Guide
One of the most important things to know about tick paralysis in pets is how it progresses. The symptoms of tick paralysis follow a recognisable pattern, and catching it early makes a real difference to the outcome.
Early Signs (12 to 24 Hours)
Change in bark or meow, often sounding hoarse or weaker than normal
Wobbling or unsteadiness in the hind legs
Lethargy and reluctance to move
Retching or vomiting
Mid-Stage Signs
Inability to stand or get up without help
Laboured or rapid breathing
Gagging, drooling, or difficulty swallowing
Loss of appetite
Advanced Stage (Life-Threatening Emergency)
Complete paralysis of all four limbs
Severe respiratory distress
Inability to blink or close the eyes fully
Blue-tinged gums, indicating lack of oxygen
What about ticks on cats? Cats often present differently. They may be quieter or more withdrawn than usual, and their owners can mistake early symptoms for general illness. Cats are also harder to check thoroughly given their coats and temperament. If your cat is hiding, off their food, or breathing oddly, do not wait to see if they come good.
The key rule: do not wait to see if symptoms resolve on their own. They will not. This is a condition that gets worse, not better, without treatment.
If your pet is showing any of the signs above, call Keysvet immediately on (03) 9798 7274. Do not drive to us without calling first so we can prepare.
What to Do If You Find a Tick on Your Pet
Finding a tick on your pet is frightening, but staying calm and acting quickly gives your pet the best chance.
Step-by-step guide for removing the tick:
Use the right tool. A tick hook (also called a tick twister) or fine-tipped tweezers are the best options. These are available from most pet shops.
Grasp as close to the skin as possible. Get right down to where the tick attaches at the pet’s skin, not around the body of the tick.
Pull upward slowly and steadily. Do not twist, jerk, or squeeze the body of the tick.
Do not use petroleum jelly, nail polish, or heat. These methods can cause the tick to inject more toxin.
Place the tick in a sealed container and bring it to the vet for identification if possible.
Call us straight away, even if your pet seems perfectly fine after the tick is removed.
This last point matters. Even after the tick has been removed, the toxin already injected continues to act. Clinical signs can actually worsen in the hours after removal, which is why your vet still needs to assess your pet even when they appear okay.
Keep your pet calm and restrict their activity. Exercise increases blood flow, which speeds up how quickly the toxin spreads through the body.
Tick Paralysis Treatment at the Vet
When a pet arrives at Keysvet suffering from tick paralysis, the first priority is stabilisation. Treatment typically involves the following:
Treatment for tick paralysis focuses on neutralising the toxin and supporting recovery. Tick antiserum stops further toxin progression, while sedation reduces stress and toxin spread. Oxygen therapy aids breathing if needed, and IV fluids maintain hydration and organ function. Hospitalisation ensures close monitoring, and a full body search is essential to remove any additional ticks
It is important to understand that the tick antiserum does not reverse damage already done. The antitoxin only binds to free toxin in the blood stream; it does nothing to the toxin that has already bound. This means that even after the tick antitoxin has been given, signs of tick paralysis can get worse. This is exactly why early veterinary care is so important: the less toxin that has bound, the better the outcome.
Vets and nurses will also check your pet’s ability to swallow before offering food or water, as aspiration (inhaling fluid into the lungs) is a real risk in paralysis cases and can lead to life-threatening pneumonia.
Recovery from tick paralysis varies. Mild cases may stabilise within a day or two. More severe cases can require several days of hospitalisation. The days after the tick is removed are often the most critical period.
Tick Prevention: The Best Strategy for Keysborough Pet Owners
Prevention is always the better option. The right tick prevention product, used correctly, can stop the paralysis tick from ever becoming a problem in the first place.
Paralysis tick prevention options for dogs and cats:
1. Tick Antiserum: Given as needed; neutralises toxin, does not prevent ticks
2. Sedation: As required; does not cover ticks
3. Oxygen Therapy: As needed; does not cover ticks
4. IV Fluids: Continuous during care; does not cover ticks
5. Hospitalisation: Until recovery; does not cover ticks
6. Full Body Search: Immediate and repeat checks; removes existing ticks
Important note: not all flea and worm preventatives protect against paralysis ticks. Standard flea treatments are a separate conversation from tick prevention and treatment. Always check with your vet that your current product covers paralysis ticks specifically. Research has shown that the introduction of new-generation tick preventatives has led to an estimated 54.8% reduction in dog tick paralysis cases and a 44% reduction in cat tick paralysis cases. The products available today are genuinely effective, and they are making a measurable difference to tick paralysis cases across eastern Australia.
Daily tick searches: how to do it properly
Even if your pet is on a tick prevention product, daily tick searches are still recommended during tick season, especially after bush walks or travel to coastal areas. Searching for ticks should be part of your routine from late winter onwards.
1. Run your fingers slowly through the coat, pressing gently to feel for any lumps or bumps.
2. Pay extra attention to the head, neck, ears, and face, as this is where ticks are most commonly found.
3. Check between toes, in skin folds, and around the groin and armpits.
4. A fine-toothed comb can help part the coat for a more thorough check your pet.
Other tips to protect your pet:
1. Keep dogs on leads in bushy areas and stick to defined paths.
2. Avoid long grass and leaf litter where ticks like to wait for a host.
3. If you are travelling to tick-endemic areas along the east coast, speak to your vet about additional precautions before you go.
4. Talk to us about whether year-round protection is appropriate for your pet’s lifestyle.
Tick prevention is not a one-size-fits-all conversation, and it deserves a separate discussion from your routine flea and worm prevention. Bring it up at your next wellness visit, or call us to ask about the best tick prevention product for your pet.
Keep your pet safe this summer.
Call Keysvet on (03) 9798 7274 to discuss the right tick preventatives for your dog or cat. Our team is here to help Melbourne pet owners and pet owners alike make informed decisions before tick season hits.
Frequently Asked Questions
1. My pet lives mostly indoors in Keysborough. Do they still need tick prevention?
Yes. Ticks can be brought inside on clothing or other pets, and even dogs with minimal outdoor exposure can be at risk. Ticks hitchhike on people and animals returning from tick-prone areas, so indoor pets are not entirely protected.
2. How do I know if the tick I found on my dog is a paralysis tick?
Look for a blue-grey colour on an engorged tick, especially if it is attached to the head, neck, or ears. Bring the tick to your local vet in a sealed container and they can confirm the species. When in doubt, treat every tick as potentially dangerous and seek veterinary advice immediately.
3. What should I do while driving my pet to the emergency vet?
Keep your pet as calm and still as possible. Do not give them food or water, as swallowing difficulties are common with tick paralysis. Keep them cool, restrict movement, and call ahead so we are ready when you arrive.
4. Can tick paralysis come back after treatment?
Recovery from tick paralysis is usually complete once all ticks are removed and the toxin clears. However, your pet will need monitoring at home for a few days after the tick has been removed, as symptoms can continue to progress even after treatment begins.
5. Is tick prevention different from my pet’s regular flea and worm treatment?
Often, yes. Many standard flea and worm products do not cover paralysis ticks. Ask your vet specifically about tick preventatives, and do not assume your current product provides full tick protection.