[Vecr]

I doubt these chickens would be used in large scale farming due to various concerns, but as a last line defense of the US flu vaccine manufacturing capability it might be worth it. Each standard flu vaccine dose takes about one fertilized egg worth of cultured virus to produce, so you need a lot of chickens around to have that capability. These genetically modified chickens could be stored in secure Strategic National Stockpile facilities in large numbers to prevent major production problems in the event of an avian influenza pandemic.