Medicine: Call for Caution

The very means that man uses to conquer or prevent disease have a way of turning on him unless he uses caution.

Last week, in the A.M.A. Journal, doctors warned of two invaluable aids to medicine that need to be handled with great care.

Monkey Danger. Thousands of lives have been saved with polio vaccines made from virus grown in cells from monkeys' kidneys. But monkeys harbor a mysterious "monkey virus B," which is nearly always fatal in man. At least 18 lab workers, write Drs. Frances M. Love and Erwin Jungherr of Lederle Laboratories, have become infected with "monkey B"—and many other...

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