As more than 40 Americans remain in quarantine for up to six weeks following a hantavirus outbreak aboard a cruise ship, former patients who spent time inside some of the nation’s highest-security medical isolation units during previous viral contagions are sharing what it’s like to endure weeks cut off from the outside world. “I want the people who are being affected by this, who are in quarantine or who have loved ones who are in quarantine, to rest assured that they are in the best of hands,”