CCL5 and pulmonary tuberculosis: In another study, RANTES level was not significantly different between patients with active pulmonary TB (N = 23) and BCG-vaccinated healthy controls (N = 30).30 Like a previous study on 28 African pulmonary TB patients showing that RANTES level correlated with the speed of sputum conversion,31 the presents study demonstrated that a higher RANTES level was associated with better therapeutic response as defined by culture conversion on the 2nd month of treatment.