Practices associated with Highly Pathogenic Avian Influenza spread in traditional poultry marketing chains: Social and economic perspectives

► Traditional poultry marketing chains are organized on an informal basis. ► Surveillance and control of HPAI are particularly challenging in these chains. ► Poultry collectors play a central role with regard to the HPAI spread. ► Disease perception and economic constraints guide the behaviour of actors when facing outbreaks. ► Value chain analysis could help to better target animal health policies.