It is then that you get an idea. Humans them selfs are weak and useless to you. But you can make a better race of beings! One of were-eagles!
So as gently as you can you bite him on the neck, making sure that a large amount of your infected saliva gets into his blood stream. Then you step away to watch.
When its done the new were-eagle asks you. "How my I serve you mistress?"
"Go now into the world and infect all humans that you see." I commanded him.