Figure 3From: Diagnosis of tuberculosis in an Indian population by an indirect ELISA protocol based on detection of Antigen 85 complex: a prospective cohort studyImmunoblot analysis using specific antibodies against Ag85 in serum samples from TB (lane A) and non-TB patients (lane B). Note the presence of Ag 85 complex (30 kD) only in TB patient serum.Back to article page