Lungworm in Cats and Kittens
Lungworm is a small parasite about 7-10mm in length that burrows itself in the lung or nearby tissue of cats. Lungworms damage the lungs and airways and can lead to infections and pneumonia.
What is Cat Lungworm?
Dear Simba,
My friend's vet thinks her cat may have lungworm. I have never heard of lungworm in cats and was wondering if you had any information on it. - Laurie Hi Laurie - Lungworm (or aelurostrongylus abstrusus) are small parasites about 7-10mm in length that burrow themselves in the lung or other nearby tissue. They are fairly common with about 5% of cats have infections. Lungworms can damage the lungs and airways can lead to infections and pneumonia. Cats often contract lungworm by eating an infected slugs or snails or by eating a rodent, birds and or other animal that has eating an infected slug or snail. Adult lungworms live in the lungs, primarily in bronchioles and alveoli (basically deep in the lung). The female lungworm lays its eggs about twenty five days following ingestion. The eggs then hatch and afterwards become larvae. These larvae then migrate to the bronchi and trachea where they are coughed up, swallowed again, travel through the intestinal tract and end up in the infected cat's feces. It is here that the infected feces is often picked up by snails and slugs and starts the whole infection cycle again. 
Photo by: J. Schoner (Wikimedia Commons) Roundworms, Tapeworms, Hookworms for Cats PREVENTING LUNGWORM
Indoor, non-feral cats are much less likely to contract lungworm
since they are not often exposed to slugs or snails or infected
birds, rodents. I am a big fan of keeping cats indoors for this and many other reasons.
If your cat is infected you should isolate your cat from any other cats or dogs lest you risk additional infections. DETECTING Cat LUNGWORM
Lung worms are detected through blood tests, tracheal wash and /
or fecal analysis.
Cat LUNGWORM SYMPTOMS
Many cats with lungworm show no symptoms. However, others show
clinical signs of lung disease. Some common clinical signs
include coughing, possible harsh lung sounds and sometimes even
fluid in the chest. Your cat may appear to have trouble breathing
and might also appear depressed or
tired. Some cats lose weight and experience rapid heart rates and
respiration.
TREATING Cat LUNGWORM
Several drugs have been used to treat lungworm in cats. Depending
on the type of lungworm your vet may use fenbendazole, albendazole or other drugs. Depending on the severity of the infection your vet may even recommend no
treatment since many times cats naturally eliminate the lungworms
in 3 to 4 months. They do this with an intense immune
response that causes an intense interstitial pneumonia that helps
eliminate the lungworms.
The prognosis is generally good for most cats unless they develop severe secondary pneumonia or other infections. I have not heard of cat lungworm being transmitted to humans (unlike Roundworms & Ringworm et al). However, common sense hygiene especially around the litter box is well advised. Keep me posted. Simba All contents are intended for entertainment purposes only. Pet owners should in no way use this site's content as a substitute for the opinions of a veterinarian or other qualified pet health provider. Owners should consult a veterinarian or other qualified pet health provider for all pet health matters. All pet care is the responsibility of the owner. Note, as an Amazon Associate, Kittencare.com earns commission from qualifying purchases.
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