GOOD NEWS
DECLARED SAFE Vaccines may work medical miracles, but fears of side effects persist. A popular misconception is that they trigger the onset or relapse of multiple sclerosis--a worry that led to the 1998 suspension of a hepatitis-B vaccination program in France. Two new studies conclude there is no link, and urge that public-health campaigns not be derailed because of unfounded concerns. Hepatitis B infects 350 million and kills 1 million every year.
ROBO HEART Only 2,000 human hearts are available each year to the 100,000 Americans who need one. When doctors tried 20 years ago to substitute an artificial...
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