Cat scrape fever can take place when a person receives a bite, scratch, or lick indigenous a cat the is infected with the bacteria Bartonella henselae.

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The infection does not usually reason severe complications, however it can lead to problems for human being with a weak immune system. Knowing how to point out cat scrape fever deserve to ensure a human being receives swift treatment.

Cats can transmit several types of epidemic to humans. Few of these conditions can be severe. Carrying out routine care for a cat frequently reduces the threat of countless of these diseases.

Share ~ above PinterestA small bump or blister may show up 3–14 work after a scratch.
A person can obtain cat scrape fever after ~ a scratch or bite native an infected cat. The Bartonella henselae (B. Henselae) bacteria live in a cat’s saliva. They can pass to a person through an open up area that skin.

Cat scratch fever is an ext common in the fall and winter when human being are inside and playing through their cats. Youngsters are more likely 보다 adults to have it, and also playing about with a cat increases the possibilities of acquiring scratched.

Cat scrape fever does no usually reason symptoms in the first few days or weeks after ~ exposure when the bacteria are multiplying in the body.

About 3 to 14 days after the infection very first occurred, a person may view a small bump or blister top top the contact area, most frequently on the:


Doctors call this one inoculation lesion. This lesion may not happen in part cases, or an individual might not notification it on your body.

A few weeks later, the lymph nodes close to the lesion may end up being swollen or tender.

Lymph nodes are responsible because that filtering bacteria and also other particles and for producing immune mechanism cells. They usually feel favor small, spongy, round or oval bumps.

If a human being has had a bite or scrape on the arm, the lymph nodes under the arm or near the elbow might be particularly tender.

Sometimes, the lymph nodes swell as much as 2 customs across. They might be warm to the touch, fluid-filled, or red. They may remain swollen because that 2–3 weeks.

For most people, puffy lymph nodes are the only symptom. However, other symptoms that could occur include:

abdominal painloss that appetitefever, generally not over 102°Fjoint paina rash

A human should view a physician if they have actually a scrape that proceeds to get larger ~ 2 days.

Cat scrape fever does not usually cause severe symptoms, but some people may build a high temperature the does not enhance with time. Some human being can also experience infections in the bones, joints, liver, lungs, or spleen.

According to the Centers for condition Control and Prevention (CDC), the many severe symptoms usually occur in children aged 5 years and under.

Cat scratch fever does not usually require emergency care, but sometimes it does. A human being should contact their doctor immediately if they endure the adhering to symptoms:

a cat bite or scrape that is not healing or is acquiring worsethe red area roughly a bite or scratch is enlarginga high heat that lasts an ext than 2 days after the bite or scratchsevere pain

Cat scratch fever deserve to be difficult to diagnose because a number of other problems have the same symptoms. The physician will ask around the individual’s medical history and whether they have actually had any type of interactions v a cat.

The physician will then research the scratched area and look for any type of swollen lymph nodes.

This is usually sufficient for a diagnosis, yet sometimes they might suggest additional tests to make sure the human does no have another condition.

The doctor might take some blood and also send it come the laboratory to discover out what sort of bacteria are present. One blood test have the right to test particularly for cat scrape fever.

Most situations of cat scratch fever space mild, and a physician will not always prescribe treatment. If symptoms are moderate to severe, they might prescribe one antibiotic.

At-home therapies for the problem include bed rest if needed, and also an over-the-counter pains reliever if the lymph nodes room painful or especially tender.

Children can mostly proceed with your usual activities, but they need to avoid hitting or interfering v the affected lymph nodes.

If a human being has had actually cat scratch fever once, they are unlikely to have actually it again.

An episode of cat scrape fever go not average a household should necessarily eliminate their pet. However, to protect against cat scrape fever, world should:

only take on a cat the is an ext than 1 year old if a family member has poor immunity, as kittens space most most likely to have the diseaseavoid unstable play about a cat or kittennever permit a cat come lick wounds or open locations of skinavoid petting stray or feral catswash hands and any other affected areas ~ playing v a cat

Fleas pass the epidemic from one cat come another.

To stop a flea infestation:

vacuum the residence frequentlyuse flea prevention, such together medication, to safeguard the cat from flea bitescontact a pest control agency if a many fleas appear in a home

The CDC calculation that approximately 40 percent that cats lug the B. Henselae bacteria at some suggest in their lives. Many of the time, they execute not show signs of illness.


Cats obtain the infection as soon as they scratch and also bite in ~ fleas the infect castle or fight through cats that space carriers.

If a cat has fleas or clearly shows scratches, a human being may great to practice caution when handling their cat. As soon as a cat has actually the cat scratch fever infection, that can lug the bacteria for number of months. During this time, it have the right to pass top top the infection.

Cats with the bacteria often have no symptoms, yet they may have actually a fever that lasts for 48–72 hours.

In rarely cases, cat scratch disease can cause severe symptom in cats.

These include:

fevervomitinglow appetitelethargyswollen lymph nodesred eyes

The infection have the right to remain for numerous months in the cat, and symptoms may reappear at time of stress, because that example, after ~ trauma or surgical treatment or alongside another illness.

Diagnosis and also treatment

A vet can inspect a cat because that fleas and also make recommendations around flea prevention and avoiding scratches and also bites.

A check is available for the bacteria, however doctors do not typically recommend it for cat that have no symptoms. The bacteria are widespread, and also the test can be unreliable.

Cats perform not usually need antibiotics uneven they have noticeable symptoms.

Prevention in cats

Share top top PinterestChildren must avoid playing approximately with cat do mitigate the danger of gaining scratched.

Taking procedures to mitigate fleas in a cat can reduce the likelihood the cat scrape fever. World can treatment for their cats by act the following:

applying or administering a vet-approved flea therapy regularlykeeping a cat indoors to avoid call with stray or infected animalskeeping a cat’s pond trimmed and neatscheduling and also maintaining constant checkups v a vet

There is right now no vaccine against cat scratch fever bacteria.

Apart indigenous cat scratch fever, a cat can carry other diseases.

These include:

Campylobacteriosis: Bacteria cause an minister infection.

Cryptosporidiosis: A parasite causes diarrhea and ab cramping.

Plague: Although rarely in America, this can occur if a human takes their cat to one more country.

Rabies: Cats must have constant vaccinations to protect against rabies infection.

Ringworm: Kittens are especially likely to lug this fungal infection. It causes bald job on the skin.

Tapeworm: Most typical in children, this epidemic occurs when a human being ingests a flea from a cat that has tapeworm larvae.

Toxocara infection: This condition does not constantly cause symptoms, however it can provide rise to significant complications, such as blindness.

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Toxoplasmosis: that is crucial to protect against this during pregnancy. Complications encompass growth and also eye problems in the unborn child and also pregnancy loss.