Fig. 1From: Spatial epidemiology and serologic cohorts increase the early detection of leprosyAnti-PGL-I titres before and at diagnosis for people detected with leprosy at 2 years follow-up. The red lines/dots represent those people who showed an increase in their IgM titres (significant increase, p < 0.001), whereas black lines/dots indicate those who showed a decrease in their titres (not significant decrease, p > 0.2)Back to article page