Translations:Basic Field Epi: Participants' Workbook/101/en
Transmission: Virus is shed from mouth, nose, faeces and eggs from infected birds. Virus is in all parts of the carcass of infected birds when they die or are killed. Chickens are infected by direct contact with sick birds or by contaminated water or food. Infection can be spread by movement of infected birds or contaminated people, equipment, food etc. from infected farms to uninfected farms.