Avian influenza (or 'bird flu') is a strain of the flu virus that has adapted to birds, the closest genetic ancestors to dinosaurs. It can easily cross the species barrier through mutation, and the genetic components of engineered dinosaurs make them more susceptible to the disease.


It is generally spread through close contact, or contaminated equipment, but can also be present in the dung of an affected dinosaur.

It is highly contagious and can be lethal to infected dinosaurs.