Contents : 1. Ecology, epidemiology and human health implications of avian influenza infections 2. Ecology and epidemiology of Newcastle disease 3. Notification of avian influenza and Newcastle disease to the World Organisation for Animal Health (OIE) 4. Emergency response on suspicion of an avian influenza or a Newcastle disease outbreak 5. Necropsy techniques and collection of samples 6. Clinical traits and pathology of avian influenza infections in poultry, guidelines for farm visit and differential diagnosis 7. Conventional diagnosis of avian influenza.- 8 molecular diagnosis of avian influenza 9. Clinical traits and pathology of Newcastle disease infection and guidelines for farm visit and differential diagnosis 10. Conventional diagnosis of Newcastle disease virus infection 11. Molecular diagnosis of Newcastle disease 12. General rules for decontamination following an outbreak of avian influenza or Newcastle disease. Websites Annex 1. Check list for visit to suspect premise Annex 2. Epidemiological investigation form for avian influenza and Newcastle disease outbreaks Annex 3. Biosafety procedures Annex 4. Laboratory solutions Annex 5. Guidelines for shipping avian influenza and Newcastle disease virus samples to oie reference laboratories