A report on mortality due to avian influenza H5N1 strain in California condors (Gymnogyps californianus) in the May 12^th edition of EGG-NEWS included a recommendation for vaccination.

In a May 17^th release, the USDA-APHIS approved the emergency use of an inactivated HPAI vaccine to prevent mortality.  The U.S. Fish and Wildlife Service requested a decision on vaccination in late March, six weeks and thirteen condors ago.  The inactivated product requested by the Fish and Wildlife Service has been available since 2016. A safety trial was carried out to demonstrate safety using domestic vultures in early May.

The approval by APHIS to allow vaccination was based on the fact that the species is critically endangered, closely monitored.  Vaccination will not affect the trade status of the U.S. since California condors are wild birds.