The changing face of poultry disease – A twenty-year retrospective

For the past 20 years intensification of the poultry industries in the EU and North American and expansion in Asia, the Middle East and Latin America, have led to the emergence of new diseases and more virulent forms of infections that were considered to be under control in the mid-1970’s. This article can also be found at World Poultry Volume 20 number 7. To view the article online simply click on the link below. Keywords: health, disease, infection, immunity, avian flu, bursal, cl