1. Avian Influenza2. Avian Paramyxoviruses3. Newcastle Disease in Turkeys4. Avian Metapneumovirus5. Poxvirus Infection6. Haemorrhagic Enteritis (Siadenovirus)7. Turkey Arthritis Reovirus8. Avian Encephalomyelitis9. Rotaviruses10. Turkey Coronavirus11. Turkey Viral Hepatitis12. Marek’s Disease13. Reticuloendotheliosis and Lymphoproliferative Disease14. Arbovirus Infection15. Parasitic Infections in Turkeys16. Ectoparasites Affecting Turkeys17. Nutritional Disorders in Fattening Turkeys18. Diagnosis of Turkey Diseases19. Vaccination and Treatment of Turkeys’ Diseases20. Key Factors for Successful Organic Turkey Production