The lung cell IL-6 and IL-17 production was higher in the BCG-vaccinated non-boosted mice (451 ± 33 pg/mL) than in the BCG-vaccinated/rHBHA-boosted (271 ± 37) and in the PBS control mice (133 ± 7 pg/mL) after i.n. infection. Here, IL6 is linked to infection.