The rate of infection, as evaluated by colocalization with astrocytic (GFAP) or neuronal (NeuN) markers (Supplementary Fig. 12a–c) was 48.6 ± 6.6% (N = 7) for astrocytic Cre, and 89 ± 5.2% (N = 5) for neuronal Cre (Supplementary Fig. 12d, e). The gene discussed is GFAP; the disease is infection.