CHMP5 and infection: Eight-week-old mice were treated with SCFAs for 2 weeks before intranasal infection with 6x104 IU (20 μL per mouse, 10 μL per nare) of either the pVSV/Spike-nLuc pseudovirus, the replication-competent rVSV/Spike-nLuc chimera, or the replication-competent rVSV-Spikeβ-GFP chimera.