COVID-19 Facts: What Does Vaccine Do to Your Body?

Whether you have an infant or your household has one, you might often hear the word vaccination. 

Medical experts and mothers usually recommend this injected drug because, according to them, it is beneficial for the body. 

According to the World Health Organization (WHO), vaccines reduce the risks of getting a disease by working with the body's natural defenses to build protection. They added that the immune system responds when an individual avail or gets a vaccine. Centers for Disease Control and Prevention (CDC) states that the drug prevents diseases that can be dangerous or fatal on their vaccine fact sheet. 

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How do vaccines work?

Public Health reports that the vaccine's occupation is to train the immune system to recognize and combat pathogens of either bacteria or viruses. Vaccine Information.org added that these substances help in developing an individual's immunity without getting sick. CDC adds in the fact sheet that immunity is done by imitating an infection - the type that rarely causes illness - so that the immune system will produce T-lymphocytes and antibodies. 

Healthy Children.org calls this process immunization. They added that immunization relies on antibodies to fight off infection. However, they emphasized that after vaccination, antibody goes to work before a first infection occurs. 

Vaccine Information.org added that including the weakened or dead germs that cause disease, the immune system would react to them as if the diseases are invading the body. They added that the antibodies destroy the vaccine antigen, serve as their training exercise, and be ready to fight the real antigens that might enter the body.

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What are vaccines made of?

According to Public Health, aside from antigens, the vaccine includes adjuvants, which, according to the CDC, aids in creating a stronger immune response in people receiving the vaccines. Public Health added in their article that antibiotics are also added to avoid contamination during the manufacturing process. Lastly, they mentioned preservatives and stabilizers that are in the mix. 

Is it safe?

You might be thinking that it is not safe to take the vaccine, but you are wrong. According to Stanford Children's Health, all available vaccines are tested and approved by the US Food and Drug Administration (FDA). 

Vaccines.gov reports that before a vaccine becomes available in the market, it undergoes a series of tests by the drug's proponent that usually takes several years.

Then when promising results are recorded by the proponents or developer of the drug, FDA will then decide whether to issue a vaccine for authorization to be used. 

Vaccine.gov added that every batch of vaccines is tested for quality and safety. They further in their article that once the FDA also considers the factories where the vaccines are being made to ensure the quality and safety of the drug. 

Stanford Children's Health also mentions in their article that minor side effects from getting a vaccine usually include a slight fever and swelling at the injection site. But do not worry because, according to the FDA, even the side effects should be reported by the proponent of the drug to the agency. The benefits should overwhelm the noted side effects before it is approved. 

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