Itchysnolaguthus is a deadly virus that the Velociraptors on Isla Sorna can get.
When Blue had to be re-located after the events of Jurassic World, Owen Grady researched Isla Sorna and read that Velociraptors were native to the island. But when they landed, Blue began to act strange around her surroundings and used her clawed "hands" to scratch at her neck. Owen decided to stay behind for a bit to observe this behavior in his beta raptor. Blue showed no signs of it, and Owen returned, but Blue quickly got into a fight and passec the virus to the male alpha raptor, who she fought for dominance over the other pack Velociraptors.