A plague of birds was detected in the workers' village of Maina in Khakassia, said the head of Syanogorsk, Yevgeny Molodnyakov. Newcastle disease (pseudoplague) is a viral disease of chickens, which affects the respiratory, digestive and central nervous systems. Poultry mortality reaches 60-90% of the total population. As Roslakuzandzor previously explained to TASS, humans can also contract this infection through the mucous membrane of the eye, but pseudoflagella is not as dangerous for people as it is for birds.