Vaccine Verity
New studies weigh benefits and risks
Smallpox. Measles. Mumps. Polio. These words once conjured up images of people with severe rashes, swollen jaws, or paralysis. Yet vaccines have eliminated smallpox and made the rest of these once-common, often-debilitating diseases rare.
The percentage of people vaccinated against these diseases is at an all-time high, while death rates from them are at all-time lows.