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Influenza in Cats


Cats can be infected with influenza viruses, including avian influenza viruses, and can spread influenza viruses to each other (cat-to-cat). Influenza in cats is thought to spread the same way that human flu spreads: through direct contact (playing or sleeping together, licking, nuzzling); through the air (droplets made from coughing or sneezing, including nasal discharge); and via contaminated surfaces (such as shared food and water bowls, cage surfaces). Some scientific studies suggest that it is not uncommon for people to infect cats with seasonal influenza viruses. Less is known about the risk of an infected cat spreading flu to people. Influenza infection in cats has generally resulted in mild illness in cats.

Influenza in Cats

CDC believes that the risk of human infection with an influenza virus from an infected cats is low, but risk is probably dependent on the characteristics of the virus in question and the duration and intensity of exposure.

CDC has long-standing guidance for cat owners, including that people wash their hands with soap and running water after contact with cats, cat saliva or stool, and after cleaning a litter box. These precautions are even more important for people who are at high risk of serious flu complications, such as those who are being treated for cancer, or who have other chronic health conditions such as diabetes, heart disease, liver disease or kidney disease or women who are pregnant. Any influenza infection can be more serious in these people.

Finding a non-human (novel) influenza virus in an unexpected host (like a domestic cat) is always concerning and any human infection with a novel influenza virus is concerning as well. These incidents are carefully investigated and appropriate actions are taken to ensure that there is no ongoing spread of the novel virus among people.

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