text_1: Certain immunomodulator-human dialyzable leukocyte extract (hDLE) peptides are recognized by toll-like receptors (TLRs) on macrophages and dendritic cells.
text_2: Leprosy enables investigation of mechanisms by which the innate immune system contributes to host defense against infection, because in one form, the disease progresses, and in the other, the infection is limited.