What Are Measles?
9. Prevention
The vaccine for measles is very effective, so effective that the disease became very rare in developed countries. However, a recent trend opposing vaccines has led to an increase in the prevalence of the disease. The chances of serious negative reactions to measles vaccines are extremely low, and it is advised that people continue to get vaccinated.
Not all people are able to get vaccinated. This includes the very young and those that are particularly weak. These people would usually be prevented by herd immunity, which means they would be safe because other people around them are vaccinated and free from the disease. A recent decrease in vaccination levels has also led to a decrease in herd immunity.
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