FIV false positives are uncommon but can happen, with some rapid tests showing up to a 10% false-positive rate (1 in 10 negative cats), though specificity is often higher (around 98-99%). False positives are more likely in low-prevalence populations or if the cat was vaccinated (before the vaccine was discontinued) or recently exposed, as it takes time for antibodies to develop. Confirmation with a more specific test like PCR or Western Blot is recommended for definitive diagnosis.
false positives are highly unlikely. they can happen with maternally derived antibodies, vaccination or some sort of freak lab error but if hes an older cat and tests positive, its likely to be accurate.
Of those, 180 samples were classified as negative on SNAP Feline Triple (Table 1). Therefore, the FIV sensitivity is 100% (95% confidence limits 96.2–100%), and the FIV specificity is 97.8% (95% confidence limits 95.4–99.4%).
Free-living, unowned cat populations in North America may have prevalence rates for antibodies to FIV ranging from 2.3% to 22% (7–10).
Yes. Occasionally, a slight positive result may actually be negative (a false positive), but it can also serve as an early indication of disease. This is why retesting to confirm the results is ideal.
There are no specific signs of FIV infection. FIV-positive cats have a weaker immune system, so they are more prone to getting infections, such as upper respiratory infections, ringworm and dental disease. Other than that, FIV-positive cats tend to live normal lives and have a normal length of life.
Kittens can be tested as early as six weeks of age through a simple blood test run in our hospital. Ideally, kittens and new cats should be isolated from any other cats in the home until two negative leukemia test results are achieved. The second leukemia test can be run 90 days or more after the first test.
Feline Leukemia (FeLV) is much more devastating than FIV. This is because FeLV typically results in cancer, leukemia, and severe bone marrow suppression in young cats. The one commonality between FELV & FIV is that there is no cure for either. Cats with FeLV only live for a few years.
While FIV is related to HIV in humans, there's no way that the cat virus can cross between species and infect people. FIV only affects cats, cannot be transmitted to non-felines.
Risk and Transmission. The primary mode of transmission for FIV is through bite wounds from an infected cat. Casual, non-aggressive contact, such as sharing water bowls or mutual grooming, does not appear to be an efficient route of spreading the virus.
At the very least, owners should be instructed in relation to the “3-2-1”-rule: incisional wedge biopsies or total removal and histological examination of any mass is warranted if the mass is still present three months after vaccination or if the mass becomes larger than two cm in diameter or if the mass is increasing ...
Infected cats should be confined indoors to prevent the spread of FIV infection to other cats and to reduce exposure to disease-producing organisms. Isolate. The best method of preventing spread to other cats in the household is to isolate the infected cat from interacting with housemates.
FIV is not contagious to humans or other animals.
Sharing food or water bowls, litter boxes, or grooming one another does not spread FIV. It's mainly transmitted through deep bite wounds during serious fights—often among unneutered male cats.
Ultimately, this study confirms what cat advocates have known for years - FIV+ cats can live a long and healthy life in the company of other cats in the home, without significant risk of transmitting the disease.
FIV is spread primarily through cats' saliva, particularly when a cat bites deep into another cat. FIV typically does NOT spread through cats grooming each other, sharing food and water bowls, or sharing a litter box.
Diagnosing feline distemper is sometimes difficult. The symptoms are often confused for symptoms of pancreatitis, poisoning, and other illnesses.
At least one such study has been conducted (and I was one of the guinea pigs), and no evidence of infection was found in anyone, even those who'd been bitten by FIV infected cats or accidentally injected with virus.
The top "silent killers" in cats are Chronic Kidney Disease (CKD), often progressing until 75% kidney failure, and Hypertrophic Cardiomyopathy (HCM), a heart muscle disease, both often showing few symptoms until advanced stages, along with Hypertension (High Blood Pressure) and Hepatic Lipidosis (Fatty Liver), leading to sudden illness or organ failure if undetected. Early detection through regular vet check-ups, blood tests, and monitoring for subtle changes like increased thirst/urination, weight loss, or hiding is crucial for managing these common, often hidden, feline diseases, says this article.
To say "I love you" in cat language, use slow blinks, offer gentle head/cheek rubs (scent glands), let them initiate contact, provide interactive play, and simply share calm presence, mimicking their natural affection signals like grooming and trust-building.
Casual interactions, such as sharing food bowls, grooming, or even touching an FIV-positive cat and then an FIV-negative one, are highly unlikely to transmit the virus.
Feline Immunodeficiency Virus (FIV) is a virus that affects cats. It weakens the immune system over time and can make it harder for a cat to fight off common infections. But cats who are FIV positive (FIV+) can live long and happy lives, just like cats without the virus!
A simple blood test is recommended for all kittens to screen for two potentially dangerous viral diseases unique to cats: feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV).
FeLV tests can provide false positives or inconclusive results: A cat in the initial stage of FeLV infection may test negative for FeLV even if they are infected. A cat exposed to FeLV may test positive during the transient phase of the infection and then test negative if the virus is overcome.
It's Uncommon for Young Kittens to Truly Have FIV
Even though kittens may test positive for antibodies, it's actually very unlikely for a kitten who was rescued at a young age to truly have FIV, because they generally are too young to participate in the kinds of activities that expose them to the disease.
Symptoms will vary with the specific secondary disease(s) a cat has, but commonly include: