Figure 9From: Analyzing spatial clustering and the spatiotemporal nature and trends of HIV/AIDS prevalence using GIS: the case of Malawi, 1994-2010 Temporal change in district-level estimates of HIV prevalence among pregnant women for various periods between 1994 and 2010. Negative values (shades of green) represent a decrease (%) in prevalence and positive values an increase, for the continuous surfaces for the time periods 1994-1999, 1999-2010, 2003-2010 and 1994-2010.Back to article page