A University of British Columbia study found that keeping domestic cats indoors is better for their health and the environment [1].
This finding challenges the common practice of allowing pets outdoors, suggesting that the risks to both feline health and local ecosystems outweigh the benefits of outdoor access.
Researchers at the university said that domestic cats carry infectious diseases at rates comparable to those found in stray cats [1]. This suggests that pets are not shielded from the pathogens that affect feral populations when they are permitted to roam outside [2].
Beyond the health of the animals, the study highlighted the negative impact outdoor cats have on wildlife [3]. Domestic cats acting as predators can disrupt local biodiversity and contribute to the decline of various species, a factor that makes indoor confinement a more sustainable choice for the ecosystem [3].
Because outdoor cats can spread infectious diseases and harm wildlife, the study concluded that indoor environments are safer [1]. This approach reduces the likelihood of pets contracting illnesses from the environment, or transmitting them to other animals [2].
Experts involved in the research said that the environmental risks are significant [3]. By restricting cats to the home, owners can mitigate the impact on native bird and small mammal populations while ensuring their pets avoid the health hazards associated with stray populations [1].
“Domestic cats carry infectious diseases at rates comparable to stray cats.”
The study shifts the narrative of pet ownership from a focus on feline 'freedom' to a broader consideration of public health and ecological preservation. By equating the disease risk of domestic cats with that of strays, the research provides a scientific basis for indoor-only policies to protect biodiversity and reduce the spread of zoonotic or feline-specific pathogens.
