In our present study, we observed more IFN-γ in serum from both BALB/c and C57BL/6 mice that were exposed to B. pseudomallei K96243 by aerosol than the IP infected mice, and although we saw a higher peak of MIG in sera (at day 2) from IP infected BALB/c mice, the elevated levels of MIG and IP-10 in sera from aerosol exposed mice were observed for a longer period after infection. Here, CXCL9 is linked to infection.