CD14 and pulmonary tuberculosis: Their binding specificities to monocytes obtained from peripheral blood (PBL) samples and macrophages in lung and lymph node sections from pulmonary TB (PTB) or lymph node TB patients and the inhibition of peptide-specific CD4+ T cells in PBL samples from patients with PTB were evaluated; In addition, any changes in tetramer-bound CD14+ monocytes from advanced and convalescent PTB outpatients were also tracked.