CXCL8 and pulmonary tuberculosis: Patients with active pulmonary TB had a higher serum level of IP-10/CXCL10 (392.2±70.5 pg/ml, n = 19) and IL-8/CXCL8 (31.9±8.5 pg/ml, n = 19) than that of normal subjects (62.8±5.4 pg/ml; 4.5±.0 pg/ml, n = 15, p<0.01, respectively) (Table 1).