Ludwig-Begall, Louisa F., Axel Mauroy, and Etienne Thiry. ‘Noroviruses-The State of the Art, Nearly Fifty Years after Their Initial Discovery’. Viruses 13, no. 8 (4 August 2021): 1541. doi.org/10.3390/v13081….
Here's a hit piece written in support of "no spread in hospitals" which is belied by outbreaks of SARS, MERS, everything else in hospitals that adhere to droplet for $$: