Extended Data Fig. 5: Distribution and extent of multiple infections with AAV injected at lower concentrations.

Sagittal sections of mouse brains at 3 weeks after ICV co-injection of PHP.eB-packaged AAV expressing nuclear-localized mScarlet, mNeonGreen, or mTagBFP, at the indicated viral concentrations, which are (a) 10-fold or (b) 100-fold lower than show in Fig. 2. Scale bars: 1 mm for low-magnification views and 100 µm for subpanels.