H5N1 bird flu in cats on the rise!
We are receiving reports from all sides about severe cases of illness among cats in certain regions of Poland.
Research is still ongoing, but initial findings reported by the National Veterinary Institute in Puławy indicate that cats are infected with the H5N1 avian influenza virus. The disease is severe, and unfortunately, for many patients at veterinary clinics, it ends in the most tragic outcome.
Amid the flood of information emerging, it is difficult to assess just how dangerous the virus is today; however, it is worth taking steps now to minimize the risk of infection and ensure our pets enjoy the best possible health.
What do we know about avian influenza in cats?
The H5N1 virus multiplies in cats’ respiratory and digestive systems, as well as in their muscles, heart, brain, and other organs. It causes acute inflammation with hemorrhagic and necrotic lesions; the disease often takes a severe course, and the virus’s incubation period lasts only 1–2 days.
Cats begin shedding the virus as early as the third day after infection—mainly through the respiratory tract and, to a lesser extent, through the digestive tract.

We can significantly reduce the risk of our pet becoming infected!
Although the virus is very dangerous for cats, and more extensive genetic testing is necessary to make a definitive diagnosis regarding the causes and source of the disease, we already know today that it is possible to significantly reduce the risk of infection for our pet. In this case, it is necessary to take precautions similar to those for contact with any other virus.
First, minimize outdoor walks and your cat’s contact with other animals.
Second, maintain good hygiene and disinfect surfaces and hands. The H5N1 virus is a so-called enveloped virus. Using a professional disinfectant will inactivate it and significantly reduce the risk of infection. Disinfect litter boxes, bowls, and other items your pet comes into contact with more frequently than usual, e.g., with the product https://dezynfekcja.pl/medisept-spray-do-dezynfekcji-powierzchni-500ml-pa,3,37571,10797.
Remember that you can also spread the virus! So before you pet your cat upon returning home, disinfect your hands with https://dezynfekcja.pl/medisept-spray-do-dezynfekcji-rak-100ml,3,37573,10621. Also make sure your cat doesn’t have access to the shoes you wear outside.
What if we suspect our cat is infected?
If you notice symptoms such as:
- fever
- protrusion of the third eyelid
- conjunctivitis
- shortness of breath
- nasal discharge (sometimes bloody)
- gastrointestinal symptoms
- neurological symptoms (seizures)
Be sure to consult a veterinarian; initially, it’s best to call or request a house call. Isolate the cat, limit contact with it to a minimum, and wash and disinfect your hands. Items contaminated with the virus should also be disinfected to ensure the greatest possible safety for yourself and your pet. Keep hand sanitizing wipes on hand; it’s also a good idea to always carry small bottles of disinfectant (100 ml or 50 ml) that you can use at any time.
By following basic hygiene rules, you’ll ensure the safety of your cat, yourself, and your loved ones.
We invite you to familiarize yourself with our hygiene plan




