Birds without natural immunity that migrate or roost together in large flocks, such as geese, are most likely to die in large ...

In the case of critically endangered California condors, scientists organized a vaccination program -- including in San Diego -- after some birds became infected; however, that’s not a realistic ...

Major poultry and dairy organizations back vaccine use to control the virus. The Trump administration is rolling out a new strategy to combat avian flu, moving away from mass culling of infected ...