French authorities have placed more than 1,700 passengers and crew under confinement on a cruise ship in Bordeaux after an elderly traveler died, officials said, while stressing the incident was not tied to the hantavirus alarm. Dozens of people aboard the Ambition also reported stomach troubles. The vessel, carrying 1,233 passengers — most of them from Ireland and Britain — arrived in the western French port of Bordeaux yesterday with 514 Indian crew members on board. Health officials said the situation bore no link to the…