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Worms that affect pets and humans

Worms that affect pets and humans can harm both species in many ways. There could be parasitic worms wriggling around in your pet’s intestines that can not only infest your cat or dog but also affect humans. So, what are these creepy, crawly worms that can impact your furry and not-so-furry family? Read on…

Tapeworms

What are tapeworms?

Tapeworms are flat, segmented intestinal parasites. They have hook-like mouthparts that attach to the host’s small intestine and feed on the digested food. Fully grown tapeworms can reach up to 60 cm or longer. They affect both humans and pets.

The individual segments of adult tapeworms pass through the infected individual’s faeces and release eggs into the environment after the excreted segment has dried and broken open.

Worms that affect pets and humans Tapeworm close up view
Worms that affect pets and humans - German shepherd puppy with tortoiseshell house cat

How does a cat or dog get infected?

Understanding How Cats and Dogs Get Infected with Tapeworms:

  • Eating raw or undercooked meat (e.g. pork, rodents, and birds)
  • Eating infected faeces
  • Puppies and kittens can be infected in utero during pregnancy through the placenta before they are born or through their mother’s milk.
  • If a cat or dog eats fleas that carry tapeworms, infection can occur in this manner.

How do you know your cat or dog has been infected with tapeworms?

If your cat or dog shows the following signs, they may be infected:

  • Regular scooting around on their bums
  • Regular licking or biting around their tail area
  • Visible white worm segments that look like grains of rice in the faeces, around the anus or hanging from the anus.

Roundworms

What are roundworms?

Roundworms are tiny parasites that affect pets and humans. They are light in colour and look like spaghetti. These worms live in the host’s intestines, feeding on partially digested intestinal contents.

One Roundworm can produce up to 85,000 eggs per day.

Worms that affect pets and humans Roundworm close up view
Parasitic worms in pets - picture of tan dachshund and black and white tabby cat

How does a cat/dog get infected?

Cats and dogs can get infected with roundworms through the following:

  • Eating raw or undercooked meat (e.g. pork, rodents, and birds)
  • Eating infected faeces
  • Transmission from mother to puppy/kitten through the placenta before birth or through the mother’s milk.
  • Fleas carrying roundworms eaten by your pet can also lead to infection.

How do you know your cat or dog has been infected with roundworms?

Roundworms are not particularly harmful to adult cats and dogs but can be highly detrimental to kittens and puppies.

If your kitten or puppy shows the following signs, they may be infected with roundworms:

  • Puppies develop a pot-bellied appearance.
  • Abdominal discomfort
  • Loss of appetite
  • Weight loss
  • Dull coat
  • Vomiting
  • Diarrhoea
  • Stunted growth
  • Weakness

Hookworms

What are hookworms?

Hookworms are small, thin, parasitic worms with hook-like mouthparts. They attach themselves to the wall of the host’s small intestine and feed on the small blood vessels in the intestinal lining.

Fully grown hookworms only reach up to 3 mm in length but can cause severe anaemia in their hosts.

Worms that affect pets and humans Hookworm close up view
picture of white and tan retriever and Moggie cat

How does a cat/dog get infected?

Cats and dogs can get infected with hookworms through the following:

  • Eating raw or undercooked meat (e.g. pork, rodents, and birds)
  • Contact with or eating infected faeces.
  • Transmission from mother to puppy/kitten through the mother’s milk

How do you know your cat or dog has been infected with hookworms?

Hookworms are not particularly harmful to adult cats and dogs but can be extremely detrimental to kittens and puppies.

If your kitten or puppy shows the following signs, they may be infected with hookworms:

  • Anaemia
  • Coughing
  • Bloody diarrhoea or dark stools
  • Weight loss
  • Weakness
  • Dull and dry fur or failure for the fur to grow correctly.
  • Irritation of the skin, especially around the paws

Whipworms

What are whipworms?

Whipworms are also worms that affect pets and humans. They are tiny, thread-like parasites that have an enlarged end. The worms live in the host’s caecum (the start of the large intestine), feeding on the host’s blood.

Fully grown whipworms only reach up to 500 mm in length. These parasites are more common in dogs than in cats.

Worms that affect pets and humans Whipworm close up view
White Labrador and Moggie cat lying together

How does a cat/dog get infected?

Cats and dogs can get infected with whipworms through the following:

  • Eating raw or undercooked meat (e.g. pork, rodents, and birds)
  • Eating infected faeces
  • Ingesting infected substances such as soil and water

How do you know your cat or dog has been infected with whipworms?

If your cat or dog shows the following signs, they may be infected with whipworms:

  • Sudden weight loss
  • Diarrhoea
  • Bloody diarrhoea or dark stools
  • Anaemia

How do you get rid of parasitic worms that affect pets and humans?

Thankfully, there are effective treatments available to eliminate parasitic worms in cats and dogs. These can be in the form of tablet “chews” available in our Store. Specific medication is preferred for humans. If your pet’s condition worsens, rest assured that professional help is just a veterinarian’s appointment away.

It’s important to remember that parasitic worm infections are largely preventable. By taking a few simple steps, you can significantly reduce the risk to your pets and yourself.

Let’s explore some of these preventive measures:

animal footprint icons
Clean-up

Regularly clean up/dispose of your pet’s faeces.

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Medication

Suppose your dog regularly goes out for walks and interacts with other dogs. In that case, they should be medicated with deworming medication every three months.

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Prevention

Use flea prevention methods, as some parasitic worms can be transmitted via fleas.

Are you looking for worm prevention products?

Try our Dog or Cat Medication products. 

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