Immunization is the process of becoming immune to protected against a disease. Immunization can also mean the process of getting vaccinated. Getting vaccinated is easy. See how vaccines are developed, approved, and monitored. Suite L Washington, D.
A-Z Index. Vaccine Basics. How do vaccines work? What are the different types of vaccines? A few helpful terms As you learn about vaccines and how they protect you, it may be helpful to understand the difference between vaccines, vaccinations, and immunizations.
Vaccine A vaccine is made from very small amounts of weak or dead germs that can cause diseases — for example, viruses, bacteria, or toxins. Vaccination Vaccination is the act of getting a vaccine, usually as a shot. Example: Schedule your tetanus vaccination today. Time Traveler for vaccine The first known use of vaccine was in See more words from the same year.
From the Editors at Merriam-Webster. Style: MLA. English Language Learners Definition of vaccine. Kids Definition of vaccine. Medical Definition of vaccine. Miller et al. They contain the genetic code for making the spike protein that the SARS-CoV-2 virus uses to latch onto and invade cells.
Once injected, a person's cells read the code and then produce the protein. They work best when administered to cells that are readily accessed by the immune system. Michael Blaese , Scientific American. Get Word of the Day daily email! Test Your Vocabulary. Test your visual vocabulary with our question challenge! A daily challenge for crossword fanatics. Love words? Need even more definitions? Merriam-Webster's Words of the Week - Jan. Ask the Editors 'Everyday' vs.
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