LCT and viral infectious disease: Down-regulation of transporter related genes, such as lactase-phlorizin hydrolase (LPH), B(0,+)-type amino acid transporter 1 (BAT1), actin cytoskeleton-regulatory complex protein PAN1 (PAN1), MFS-type transporter (MFS), and otoferlin, could repress virus infection in host cells [37–42].