An outbreak of bird flu in Belgium has led to the withdrawal of an application to regain official bird flu status, setting back poultry farmers. The source of the contamination is under investigation, but indirect contact with wild birds cannot be ruled out. Agriculture Minister David Clarinval has urged farmers to comply with biosecurity measures and to contact the vet if they suspect bird flu. The last outbreak in the Netherlands was in March, but infected wild birds have been reported after that date.