RIC8B and infection: We quantified the infection rate in the superior cervical ganglion (SCG), where AAV PHP.S-hSyn-DIO-hM3D-mCherry infected 24.8 ± 1.14% of neurones in a cre-dependent manner, without any detectable infection in the central nervous system (CNS) and somatosensory system (Figure 2B, C, and D).