Fig. 5From: Examining the spatiotemporal evolution of vaccine refusal: nonmedical exemptions from vaccination in California, 2000–2013NME rate of the 9 group centers using the Tract-level data. The groups in blue have low NME rates in 2000 with small to moderate increases over the study period. The groups in orange have low NME rates in 2000 and large increases over the study period. The groups in red have high NME rates in 2000 and large increases over the study periodBack to article page