Japan will keep close tabs on the health conditions of people who were allowed to leave a coronavirus-hit cruise ship after testing negative for the virus, the country's health minister said Sunday, following revelations that one such person was found infected soon after returning home.The country's health authorities will make daily phone calls to hundreds of people who have disembarked from the Diamond Princess docked in Yokohama, and have already asked them to avoid using public transportation and to wear masks when they come into contact with others, Katsunobu Kato said.On Saturday, aut…READ FULL ARTICLE