We compared the effects of Gq/11 induced Ca2+ signals during visual processing between CaMello and CaMello-5HT2A, which were mainly expressed in pyramidal neurons (immunostaining reveals colocalization with the endogenous GluR2/3 subunits in pyramidal neurons) and Pvalb+ interneurons (immunostaining reveals colocalization with parvalbumin) after viral infection of V1 (Fig. 6b). Here, HTR2A is linked to viral infectious disease.