Dec 20 (Reuters) - Royal Caribbean Group (RCL.N) said on Monday 48 people on its Symphony of the Seas cruise ship tested positive for COVID-19, fueling concerns that the new Omicron variant of the coronavirus could put a damper on a recovery in the cruise industry. The cruise operator said it had 6,091 guests and crew members on board the ship, which ended a week-long cruise in Miami on Saturday after setting sail on Dec. 11. The passengers who tested positive were asymptomatic or mildly symptomatic, Royal Caribbean said in a statement, adding that six guests were disembarked earlier in the cruise and transported home. Royal Caribbean said 95% of the community on board were fully vaccinated, while 98% of those who tested positive were also fully vaccinated. Symphony"s future itineraries are not impacted, it added. (This story corrects headline to say COVID-19, not Omicron variant)