How mRNA COVID-19 Vaccines Work
What is mRNA?
mRNA stands for messenger ribonucleic acid. It is a molecule that carries instructions from DNA to the ribosomes, which are the protein-making machinery of the cell. In the case of mRNA COVID-19 vaccines, the mRNA carries instructions for making a piece of the spike protein of the SARS-CoV-2 virus. When the mRNA is injected into the body, it is taken up by cells and translated into protein. This protein then triggers an immune response, which protects the body from future infection with the SARS-CoV-2 virus.
How are mRNA vaccines different from other types of vaccines?
Traditional vaccines work by introducing a weakened or inactivated form of the virus into the body. This triggers an immune response, which protects the body from future infection with the virus. mRNA vaccines, on the other hand, do not contain any virus particles. Instead, they contain mRNA that carries instructions for making a piece of the virus's spike protein. This means that mRNA vaccines are safer than traditional vaccines, because they do not pose the risk of causing infection.
Are mRNA vaccines safe?
mRNA vaccines have been shown to be safe in clinical trials. The most common side effects are injection site reactions, such as pain, redness, and swelling. These side effects are usually mild and go away within a few days. More serious side effects, such as allergic reactions, are rare.
How effective are mRNA vaccines?
mRNA vaccines have been shown to be very effective in preventing COVID-19. In clinical trials, mRNA vaccines have been shown to be 95% effective in preventing symptomatic COVID-19 and 100% effective in preventing severe COVID-19.
Who should get an mRNA vaccine?
mRNA vaccines are recommended for everyone over the age of 5. mRNA vaccines are particularly important for people who are at high risk of developing severe COVID-19, such as people with underlying health conditions, people over the age of 65, and people who live in congregate settings.
When should I get an mRNA vaccine?
mRNA vaccines are available now. You can schedule an appointment to get an mRNA vaccine at your local pharmacy or health clinic. It is important to get vaccinated as soon as possible to protect yourself from COVID-19.
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