Following the extension of highly pathogenic avian influenza (HPAI) strain H5N1 to numerous nations in Central and South America, and persistence of infection in Europe, Asia and Africa, the World Organization of Animal Health (WOAH) has created a Standing Group of Experts on Avian Influenza.  This Committee will function under the Global Framework for the Progressive Control of Transboundary Animal Diseases. The Group will provide guidance on emergency response, control and preventive action with respect to Avian Influenza.

In accordance with WOAH policy, “The decision to set up vaccination plans rests with the Veterinary Authority in each country.   It must be based on a risk analysis at regional and national level and in consideration of the international context, potential economic consequences of current outbreaks and the capacity of the veterinary services to conduct an effective vaccination campaign.”

WOAH policy allows for immunization as a component of an integrated and sustainable solution to control avian influenza with vaccination intended to suppress infection until eradication can be achieved.  Major concerns relating to vaccination against HPAI include the possibility of persistence of subclinical infection.

2013 update includes Central and South America

In reality, HPAI infection is introduced by migratory birds and given events during the past year, domestic birds in North America have become involved in the cycle of infection.  Effectively, HPAI has become seasonally and regionally endemic in nations in Europe, North America and Asia and attempts to eradicate the infection are, at best, aspirational.