1. Straub TM, Honer zu Bentrup K, OroszCoghlan P, Dohnalkova A, Mayer BK, Batholomew RA, et al. In vitro cell culture assay for human noroviruses. Emerg Infect Dis. 2007;13:396–403. Available from http://www.cdc.gov/eid/content/13/3/396. htm 2. Rochelle PA, Marshall MM, Mead JR, Johnson AM, Korich DG, Rosen JS, et al. Comparison of in vitro cell culture and mouse assay for measuring infectivity...