Authors
Anna Gierak
Department of Epidemiology and Risk Assessment, Puławy, Poland
Krzysztof Śmietanka
Department of Poultry Diseases, National Veterinary Research Institute, Puławy, Poland
© 2021 Anna Gierak, Krzysztof Śmietanka, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.