A large portion of the hundreds of coronavirus infections confirmed on the Diamond Princess cruise ship docked in Yokohama occurred before Japan asked all passengers and crew to stay inside their cabins for a two-week quarantine on Feb. 5, a research institute said Wednesday.A large majority of the infected passengers developed pneumonia-like symptoms between Feb. 6 and Feb. 9, and Feb. 10 onward among crew members, the National Institute of Infectious Diseases said."Some of the crew members were not completely quarantined because they needed to conduct the bare minimum to maintain the ship…READ FULL ARTICLE