TAIPEI, Dec 11 (Reuters) - Taiwan confirmed on Saturday its first cases of the Omicron variant of coronavirus, found in three people who had arrived from abroad. The island"s Central Epidemic Command Centre said the infections were found in travellers arriving from Britain, the southern African nation of Eswatini and the United States. Like all entrants, they were tested on arrival and already subject to two weeks of quarantine. Reporting by Ben Blanchard; Writing by Andrew Galbraith; Editing by Edmund Klamann and Clarence Fernandez