Five people received new kidneys last week in what hospital officials on Monday described as the first-ever quintuple kidney transplant. Several triple transplants have previously been performed at the Johns Hopkins Transplant Center in Baltimore, but hospital officials say the five simultaneous transplants performed last Tuesday were a first. The operations involved six operating rooms, 12 surgeons, 11 anesthesiologists, and 18 nurses, hospital officials said. The donor surgeries took nearly four hours, and the transplant procedures also took about four hours.