Avian Polyomavirus is a virus that primarily affects birds, particularly parrots and other pet birds. It can cause a disease known as avian polyomavirus infection, which leads to symptoms such as feather abnormalities, lethargy, and in severe cases, death. The virus is highly contagious and can spread through direct contact or contaminated environments. Infected birds can shed the virus even if they do not show symptoms, making it challenging to control outbreaks. Vaccination is available and is an effective way to protect birds from this virus. Regular health checks and good hygiene practices are also essential for preventing the spread of avian polyomavirus.