Human norovirus Norovirus 2 human 2 in vitro study 2 nonhuman 2 protein expression 2 virus replication 2 Alginate hydrogel 1 Article 1 Caco-2 cell line 1 In vitro propagation 1 Microfold cells 1 Murine norovirus 1 Murine norovirus 1 1 Murine norovirus 3 1 Norovirus replication 1 Noroviruses 1 Raji cell line 1 Review 1 Three-dimensional culture 1 Ulex europaeus 1 Western blotting 1 alginic acid 1 antibody 1 beta1 integrin 1 cell culture technique 1 coculture 1 culture optimization 1 cytokine release 1 cytopathogenic effect 1