Milestones

DIED. Charles Shepard, 70, medical researcher with the federal Centers for Disease Control and a leading expert on leprosy, who in 1960 first succeeded in growing in lab animals the microbe that causes leprosy, a breakthrough that enabled scientists to test potential treatments and preventive measures much more quickly; of an apparent heart attack; in Atlanta. In 1976, Shepard was also one of two CDC researchers who isolated the elusive bacterium that causes Legionnaires' disease.