Mice infected with the tar1Δ mutant succumbed to infection slightly faster (between 16 and 19 days post infection, median survival of 18 days) than mice infected with the wild-type strain (between 18 and 24 days post infection, median survival of 21.5 days) (WT vs tar1Δ, P = 0.0021). Here, TAAR1 is linked to infection.