Contact structures in the poultry industry in Great Britain: Exploring transmission routes for a potential avian influenza virus epidemic

Table 1 Potential between farm transmission routes of avian influenza virus.

Vehicles	People	Fomites	Environment
Litter disposal	Catchers and Thinners	Catching equipment	Wildfowl
Catching	Drivers	Containers	Water and Feed
Disposal and replacement	Cleaning teams	Pallets	Airborne (dust)
Cleaning	Artificial Insemination Teams	Culling equipment	Flying insects
Dead bird collection	Area Managers	Workman's clothes	Game birds (shows)
Imports	Farm staff	Dead bird collecting
Hatching egg collection	Dead bird collectors	Holding station
Feed delivery	Vets	Raw feed Material
Visiting
Vaccination
Farm

Transmission routes are broken down into sub-categories, which are then ranked in order of potential risk of acting as a transmission route of disease, from most important to least important.

ISSN: 1746-6148