How does the COVID-19 vaccine prevent COVID-19?
The COVID-19 vaccine material enters the human body and stimulates immune cells, B cells and T cells. B cells make antibodies against COVID-19, and some of the immune cells remain memory cells. After that, when COVID-19 enters our body, the antibodies and memory cells made through vaccination respond quickly to the virus invasion, preventing the coronavirus-19 infection.
Can mRNA vaccines affect human genes?
No. It’s absolutely impossible. The nucleic acid vaccine (mRNA) is broken down in the body after a few hours. mRNA injected by injection cannot enter the cell nucleus, which contains the genetic material (DNA) within human cells, and therefore cannot interact with human genes.
Does the COVID-19 vaccine contain preservatives?
No. The COVID-19 vaccine currently in use does not contain preservatives.
How long does it take to acquire immunity after being vaccinated against COVID-19?
It takes 2 to 3 weeks or more for protective antibodies to form after vaccination. For maximum vaccine effectiveness, it is very important to complete the second dose within the recommended period for each vaccine.
How long does immunity last after vaccination against COVID-19? Do I need to be vaccinated every year like the influenza vaccine?
Research into the duration of immunity and long-term immunogenicity of COVID-19 vaccines is ongoing worldwide. Exact duration of immunity and long-term immunogenicity are unknown due to insufficient research.
Can I get COVID-19 even if I am vaccinated against COVID-19?
Immunity may not be formed after being vaccinated against COVID-19. Even if you have been vaccinated against COVID-19, you can still become infected with COVID-19 if you have not yet developed immunity, or if the effectiveness of the immunity you have developed has diminished over time.
Therefore, even if you have been vaccinated, you must follow personal quarantine rules such as wearing a mask, washing your hands, and social distancing to prevent infection with COVID-19.
Are vaccine diluent ingredients harmful to the body?
The diluent is 0.9% normal saline, and 0.9% normal saline is composed of sterile distilled water for injection and sodium chloride (NaCl), a component of salt. 0.9% normal saline has a concentration similar to that of human body fluids and is widely used safely as a diluent for injections. A small amount of 0.9% normal saline injected as a diluted solution of the vaccine is not harmful to the human body
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