How do vaccines help?

By readying the immune system for future health battles, vaccines protect individuals around the world from dangerous diseases. 

  • It’s estimated that vaccines save 2 to 3 million lives each year globally. 
  • Vaccines have led to remarkable drops in death and cases of measles, mumps, and polio, among other dangerous diseases.
  • Vaccines also played a critical role in eliminating smallpox, which is “one of the most devastating diseases known to humanity” according to the World Health Organization.
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Related Questions
How do vaccines help?
By readying the immune system for future health battles, vaccines protect individuals around the world from dangerous diseases. 
What is an antibody?
Once administered, vaccines don’t harm your body. Instead, they trigger the production of a vital protein known as an antibody.
How will we know a Covid-19 vaccine is safe and effective?
With vaccine development moving so quickly, it’s easy to understand why some people are asking whether a vaccine for Covid-19 will be safe and effective. But it is important to remember the very strict scientific and regulatory process vaccine developers must follow to bring a new product to patients, even during the current pandemic.
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