Word: harmful
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Dates: during 1960-1969
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...disease is the most frequent cause of eyeball-scarring infections in the U.S., and for no known reason it is becoming commoner. Its scars are the main reason for corneal transplants. Its cause is the versatile virus herpes simplex, which usually does no more harm than to touch off annoying fever blisters or canker sores in the mouth, but may cause blindness if it reaches the eyes, or even death if it attacks the brain...
Henry Adams once described the passive role of Harvard in his famous judgment that the college was good only because it did him less harm than any other way he might have spent four years. Such a doctrine is, however, bad for the educator's self-esteem, and can scarcely be the basis of an explicit theory. Today, with four of every five seniors headed for graduate study, Harvard has become the world's largest prep school. Like any prep school, it is filled with students who are essentially reduced to the rank of adolescents, because their graduation will mark...
Better Red than Dead. Blood may save lives wholesale if fresh, and each year more than 2,000,000 Americans get a total of some 5,500,000 transfusions of it. But after three weeks, as more and more of its red cells die, it may do more harm than good, and its use is prohibited. Time-expired blood can be salvaged up to the 26th day by removing the cells, which are thrown away, and saving the virtually imperishable plasma, used for burned patients and patients who are in shock...
Agreeing with Hughes, Eugene G. Rochow, professor of Chemistry, said. "Only harm can come from a testing resumption." He claimed that man has not yet been able to determine at what point radioactivity becomes dangerous on either short or long-term levels...
...male silkworms yield almost one-third more silk than those of females, so Dr. Astaurov concentrated next on making silkworm eggs hatch into males. His most successful technique is to expose unfertilized eggs to X rays. This rough treatment kills the delicate female genetic material but does no apparent harm to other parts of the eggs. Then Dr. Astaurov fertilizes the eggs with male sperm that has not been irradiated. When the embryos develop, they are free of female influence; they all grow into high-yield male silkworms...