TLR4 and infection: All turkeys that received vaccination and infection as mentioned above showed consequences on upregulation of TLR1B, TLR2B, TLR4, TLR6 and TLR7, whereas in chickens of the equivalent group, TLR1B, TLR2B and TLR21 were found to be increased in contrast to TLR4 and TLR7 which were decreased.