A clue to AIDS is uncovered
Scientists were excited when symptoms similar to those of acquired immune deficiency syndrome (AIDS) were first seen in monkeys at two U.S. research centers. The possibilities for study in animals far exceeds that in humans, yet researchers consistently failed in their efforts to reproduce AIDS in laboratory animals. Now, nearly a year later, scientists have announced a victory: the isolation of a previously unknown virus that appears to cause the disease known as simian AIDS. The discovery may provide a crucial clue to the cause of the...
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