The virus is very transmissible, as evidenced by a case in China where 2 families were infected in a restaurant simply by sitting next to a third family which had an asymptomatic but infected member.
Well not surprising if you are in a traditional Chinese family restaurant whee everyone shares the food from a single pot and picks up food bits with its own sticks on that pot..This is their culture. So I guess it is a bit more than just sitting around the same table...
The real fear is if that virus gets to Africa, where physical contacts, handshakes and eating and sharing food using fingers is common place and cultural in rural areas. Also in Many African Sates have a very basic medical infrastructure.