Cats Are 'Likely' Spreading A Dangerous Parasite Across Canada Says A New Study

It can also infect humans.

Editor

A study from UBC has found that free-roaming outdoor cats are likely driving the spread of a parasite to wildlife.

The study suggests that cats that are wandering around freely outdoors may be to blame for the spread of Toxoplasma gondii, a parasite that can be deadly.

Researchers analyzed 45,079 cases of the disease in wild mammals, making it the first study to look at so many species on a global scale.

It said that the disease is linked to chronic conditions like types of cancer and nervous system disorders.

The parasite can infect birds and mammals, including humans. The parasite is dangerous for pregnant women and anyone who is immune-compromised, and it can cause serious illnesses — even death.

In a healthy mammal, though, the parasite remains dormant.

It's more likely to infect in places with a high human density, like urban areas. With more humans come more pets, meaning that an increased population leads to more free-roaming cats that can spread the parasite.

Cats have a unique ability to quickly spread the infection. "One infected cat can excrete as many as 500 million Toxoplasma oocysts (or eggs) in just two weeks," said the study's press release.

These eggs can live in soil and water for years before infecting birds or mammals.

With the finding that cats may be responsible for the increased likelihood of infection near urban areas, it makes it easier to reduce Tocoplasma in wildlife by limiting roaming cats.

The solution? Keep cats indoors as much as possible to help reduce the spread.

  • Editor

    Morgan Leet (she/her) is an Editor for Narcity Media Group. After graduating from Carleton University’s School of Journalism and Communication, she jumped into fulfilling her dream as a journalist, merging her passion for travelling with writing. She got her start working in the print media world on Canada’s East Coast, then joined Narcity with a move to B.C., leading the launch of West Coast coverage. Her focus now is managing a large group of freelance writers, bringing human-forward and opinion content to the site.

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