The New England Journal of Medicine has highlighted cat scratch disease in a clinical images post, prompting a closer look at what this bacterial infection means for cat owners here in Kent.
A Familiar Pet, An Unfamiliar Illness
Most of us in Kent will know someone with a cat. They’re the nation’s most popular pet, padding around living rooms from Folkestone to Faversham, curling up on sofas in Canterbury and Maidstone alike. But a post from one of the world’s most respected medical journals has drawn attention to a condition that many cat owners have never heard of — cat scratch disease.
The New England Journal of Medicine, known in medical circles as the NEJM, shared clinical images relating to cat scratch disease under its infectious disease series. The NEJM is a peer-reviewed journal with a global readership of clinicians, researchers, and public health professionals, and its clinical image features are used to help doctors recognise conditions they may encounter in practice.
What Is Cat Scratch Disease, Exactly?
Cat scratch disease — sometimes called cat scratch fever — is a bacterial infection caused by *Bartonella henselae*, a bacterium carried in cat fleas and passed to cats when fleas bite them. Humans typically pick it up through a scratch or bite from an infected cat, or when flea dirt (the polite term for flea faeces) gets into a wound or the eye.
It’s not something most healthy adults need to panic about. In the majority of cases, the infection causes a mild swelling of the lymph nodes — the small glands you might feel in your neck, armpit, or groin — along with some tiredness and a low fever. The lymph nodes near the scratch site are usually the ones affected.
But it can be more serious in people with weakened immune systems, including those undergoing chemotherapy, people living with HIV, or those on certain long-term medications.
How Common Is It in the UK?
Cat scratch disease is considered uncommon in the UK, though it is likely underdiagnosed because milder cases often resolve on their own without a formal diagnosis. There is no specific national data published for Kent or the South East, so it’s difficult to put a precise local figure on it.
GPs do occasionally see cases, and the condition is something NHS clinicians are trained to consider when a patient presents with unexplained swollen glands and a history of cat contact.
The Signs to Watch For
According to NHS guidance, symptoms of cat scratch disease typically appear between three and fourteen days after a scratch or bite. These can include a small blister or bump at the site of the scratch, swollen and tender lymph nodes, mild fever, headache, and fatigue.
In rare cases — and this is where the NEJM’s clinical imaging work becomes genuinely useful for doctors — the infection can spread to the eyes, liver, spleen, or nervous system. These complications are uncommon but are more likely in immunocompromised individuals.
The condition is not passed from person to person. You can only get it through direct contact with an infected cat.
Keeping Your Cat — and Yourself — Safe
The good news is that prevention is straightforward. Keeping your cat treated with regular flea prevention products much reduces the risk. Washing hands after handling cats, avoiding rough play that might lead to scratches, and cleaning any cat scratch promptly with soap and water are all sensible steps.
You don’t need to rehome your cat over this. But it’s worth being aware, above all if you or someone in your household has a condition that affects the immune system.
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Source: @NEJM
Key Takeaways
- Cat scratch disease is a bacterial infection caused by *Bartonella henselae*, typically spread through cat scratches or bites rather than person-to-person contact
- Symptoms include swollen lymph nodes, mild fever, and fatigue, usually appearing within three to fourteen days of a scratch — most healthy people recover without specific treatment
- People with weakened immune systems are at greater risk of more serious complications and should speak to their GP if they develop symptoms after contact with a cat
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What This Means for Kent Residents
If you or your family keep cats here in Kent, the most practical step you can take is to ensure your pet is on a regular, vet-recommended flea treatment programme — this reduces the chance of *Bartonella henselae* being present in the first place. If you notice unusual swelling around your lymph nodes after a cat scratch, chiefly if it persists for more than a couple of weeks or is accompanied by a fever, contact your GP or call NHS 111 for advice. Anyone in your household who is immunocompromised — whether through illness or medication — should mention their cat ownership to their GP so the doctor can factor it into any assessment of unexplained symptoms. For urgent medical concerns, always call 999 or go to your nearest A&E.
*For general health queries, call NHS 111 or visit your GP surgery. In a medical emergency, call 999.*