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Vaccines aren't just for children. Adults need them too, whether it's a booster for tetatnus, protection against shingles, or to protect against less common diseases when traveling internationally.
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Most scientists, physicians, and public health researchers have concluded that there is no association between vaccines and autism. Some, however, still question whether vaccines play a role in autism.
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Vaccines are made using several different processes. They may contain live viruses that have been attenuated (weakened or altered so as not to cause illness); inactivated or killed organisms or viruses; inactivated toxins (for bacterial diseases where toxins generated by the bacteria, and not the bacteria themselves, cause illness); or merely segments of the pathogen (this includes both subunit and conjugate vaccines). -
The human immune system is essential for our survival in a world full of potentially dangerous microbes.