Tick Fever in Dogs in Kerala: Signs, Why It Is an Emergency and How to Prevent It

Tick fever is not one disease. It is a group of infections that ticks pass to dogs while feeding on their blood. The ones that matter most in Kerala are:

• •Babesiosis: caused by Babesia parasites, such as Babesia gibsoni and Babesia vogeli, which live inside red blood cells and destroy them. The Merck Veterinary Manual notes it can range from a mild illness to a severe one that causes death, with anaemia, jaundice and red urine.
• •Ehrlichiosis: caused by Ehrlichia canis bacteria, which infect white blood cells. It is spread by the brown dog tick, and it can lower platelets, the cells that help blood clot, leading to nosebleeds and bruising.
• •Other tick-borne infections: Anaplasma, and Hepatozoon, which dogs catch by swallowing an infected tick rather than from a bite.

Dogs can carry more than one of these at once. The common carrier is the brown dog tick, which the Tropical Council for Companion Animal Parasites (TroCCAP) calls the most common tick on dogs in the tropics. It completes more than one generation a year in warm climates like Kerala's, which is why tick control here is a year-round job.

Research from the Kerala Veterinary and Animal Sciences University (KVASU) at Mannuthy suggests it is very common. In a study published in Veterinary World in 2017, researchers tested 150 client-owned dogs brought to hospitals for treatment or routine checks:

• •A PCR test (which detects the parasite's genetic material) found Babesia gibsoni in 71 of 150 dogs, or 47.3%.
• •Standard stained blood smears found it in only 40 dogs, or 26.7%.
• •Many PCR-positive dogs with no parasites visible on the smear still had anaemia and a severe drop in platelets.

The authors described a high and rising prevalence of Babesia gibsoni in Kerala dogs, and noted that many infections were subclinical or chronic. In plain terms: a dog can carry tick fever without obvious illness, and a normal-looking smear does not always rule it out. That is a reason to give your vet the full history, including recent ticks, even when your dog seems only a little off.

Signs depend on which infection a dog has and how long it has had it. Many start vaguely, so owners often put the first days down to heat or a bad mood. Watch for:

• •Fever, sometimes with panting at rest. A warm nose is not a reliable sign; your vet will take your dog's temperature.
• •Tiredness, weakness, or reluctance to walk, play or climb stairs.
• •Loss of appetite, or a dog that sniffs its food and walks away.
• •Pale gums (press a fingertip on the gum: pale pink or white is a warning sign).
• •Yellow gums, eyes or skin (jaundice).
• •Red, brown or dark urine.
• •Nosebleeds, blood in urine or stool, or small red spots and bruises on the belly or gums.
• •Swollen lymph nodes, felt as lumps under the jaw or behind the knees.
• •Stiffness, limping or pain when touched.
• •Weight loss or eye inflammation in longer-standing cases.

The Merck Veterinary Manual notes that long-term ehrlichiosis can damage the kidneys, eyes and nervous system, and that German Shepherds appear more prone to the chronic form.

Tick fever can move fast. Babesia destroys red blood cells, and a dog's blood count can drop steeply in a few days. Ehrlichia can lower platelets far enough that the dog bleeds. Severe cases may need hospital care, including fluids and blood transfusions, and some dogs do not survive. Early treatment gives the best chance.

Go to a vet now if your dog has had ticks, or lives where ticks are common, and has any of these:

• •Pale, white or yellow gums.
• •Red, brown or dark urine.
• •Bleeding from the nose, in the urine or stool, or unexplained bruising.
• •Weakness, collapse or fast breathing at rest.
• •Refusal to eat with fever or dullness.

Do not wait for a weekend, an evening appointment or for the signs to settle. Call your vet on the way so they can prepare.

Tick fever looks like several other illnesses, so it has to be confirmed with laboratory tests. Your vet will examine your dog and usually recommend some combination of:

• •A complete blood count, to check red cells, white cells and platelets.
• •A stained blood smear, looked at under the microscope for parasites.
• •PCR or antibody tests, which can find infections a smear misses.
• •Other blood and urine tests, to check the kidneys and liver.

Help your vet by telling them when you last saw ticks, when tick prevention was last given, whether your dog has travelled, boarded or been groomed recently, and any change in urine colour. Bring the product packet if you are unsure what was used.

The treatment is your vet's decision and depends on the infection, the test results and how sick the dog is. Do not use leftover tablets, injections from a previous illness or remedies passed around on social media. Finish every dose your vet prescribes and go back for the repeat tests they ask for, because some infections persist or return.

TroCCAP recommends regular visual checks and prompt removal of ticks to reduce the risk of tick-borne infections. The sooner a tick comes off, the less chance it has to pass on an infection, so a daily check is worth the five minutes.

• •Check once a day, ideally in good light in the evening, and after every walk through grass, scrub or rubber and coconut plantations.
• •Run your fingers slowly against the coat and feel for small bumps.
• •Look closely at the places TroCCAP lists as favourite attachment sites: in and around the ears, around the eyes, the armpits, the groin and between the toes.
• •Also check under the collar, along the tail and around the bottom.
• •Remove ticks with fine-tipped tweezers or a tick tool: grip as close to the skin as you can and pull straight out with steady pressure, as the Merck Veterinary Manual advises. Do not twist hard, burn the tick, or smear oil or kerosene on it.
• •Drop removed ticks into a small container of alcohol or seal them in tape. Do not crush them with bare fingers.
• •Wash your hands and the bite area afterwards.

A few ticks found and removed early is the routine working. Dozens of ticks, or ticks returning within days of treatment, means the home environment needs attention and your vet should review your prevention plan.

Daily checks catch ticks; prevention stops most of them biting in the first place. TroCCAP advises that dogs with outdoor access be protected against ticks throughout the year, and notes that even dogs living mostly indoors are often exposed, for example at parks or during grooming and bathing visits.

• •Ask your vet which product suits your dog. Options include spot-ons, collars and tablets, and the right choice depends on age, weight, health, other pets and how much your dog swims.
• •Give it on schedule, every time. Many tick fever cases follow a missed or late dose.
• •Use only products made for dogs, at the dose for your dog's weight. Never split a large-dog product between small dogs or use farm-animal products on pets.
• •Treat every dog in the household on the same schedule.
• •Remember that your dog's routine vaccinations do not protect against tick fever, so tick control is the main protection.

Puppies need extra care with products and timing. Our puppy vaccination schedule post covers how tick prevention fits into the first months.

The brown dog tick is unusual: it is happy to live around homes and kennels, not just in grass. Females drop off a dog to lay their eggs in cracks, corners and bedding, so the next generation hatches right where your dog sleeps.

• •Wash dog bedding in hot water every week in tick season, and dry it fully in the sun.
• •Vacuum or sweep and mop where your dog sleeps, especially along walls and in corners.
• •Seal cracks in kennel walls, floors and around door frames where ticks hide.
• •Keep grass short and clear piled leaves, coconut husks and junk where ticks shelter.
• •Check and treat a kennel or outdoor sleeping area as carefully as the dog.
• •For a heavy infestation, ask your vet before using any chemical spray around the home, and use a professional if needed. Some products are toxic to cats, fish and people.

Any place where dogs meet, from a park to a groomer to a boarding facility, can move ticks from one dog to another. That is why responsible boarding facilities ask for current tick prevention before a stay, and why you should check your own dog after any time away from home.

Neolokam, a 1.5-acre cage-free dog farm east of Trivandrum city towards Kattakada, asks for a trial visit and temperament assessment; up-to-date rabies and core vaccinations with the record; current tick and parasite prevention as advised by your vet; and dogs must be comfortable around other dogs. When you book any boarding, ask how dogs are checked for ticks during the stay.

Before a stay, confirm with your vet that your dog's tick prevention will cover the whole period. After your dog comes home, do a thorough tick check that evening and keep watch for the signs above for a few weeks.

Save this to your phone.

• •Every day: tick check of ears, eyes, armpits, groin, toes, collar line and tail.
• •Remove ticks with tweezers or a tick tool, close to the skin, straight out. Wash hands.
• •On schedule: vet-advised tick prevention, all year, for every dog in the home.
• •Every week in tick season: hot-wash bedding, clean sleeping areas, check kennel cracks.
• •Watch for: fever, dullness, poor appetite, pale or yellow gums, dark urine, nosebleeds, bruising.
• •Go to a vet now for: pale, white or yellow gums, red or dark urine, bleeding, weakness or collapse.
• •At the vet: mention recent ticks, the last prevention date, travel, boarding or grooming.
• •Never: home remedies, leftover medicines, or stopping treatment early.