Fig. 2From: The early immune response to infection of chickens with Infectious Bronchitis Virus (IBV) in susceptible and resistant birdsPathway Express analysis of the host response to IBV infection in the trachea of susceptible birds (Line 15I). Many genes involved in antigen processing and presentation (a) and in the Toll-like receptor pathway (b) can be seen to be up-regulated (shown in red)Back to article page