Can norovirus be spread through saliva? How long are you contagious after vomiting stops?

See below. Norovirus is mainly spread by fecal-oral route. The virus is shed in stool and also by airborne droplets of vomitus. You contract the virus by eating contaminated food or drink, by touching a surface thats been contaminated or by exposure to the vomitus. If a person recently vomited, saliva would transmit the virus. You are mostly contagious during the acute illness and for several days after.
Yes, Norovirus spreads through contact with saliva or stool (the oral-fecal route of transmission). You are still contagious a few days after your symptoms resolve. See Good hand washing and not sharing dinnerware or drinks is wise.