How Vaccines Work? Immune response!

 

Vaccines and immune response

 

 

Today, I would like to briefly explain vaccines and immune responses.

 

 

 

 

What is a vaccine?

A vaccine is a special injection that helps our bodies resist infectious diseases. This injection is made using pathogens or toxic substances. When we get vaccinated, our bodies create a special defense system, like preparing for a boss monster in a game, to be prepared against infectious diseases.

 

 

How does a vaccine work?

A vaccine introduces a substance called an antigen. Antigens are parts of things that cause infectious diseases, like parts or surface proteins. When we inject these antigens, the body's immune system wakes up and becomes able to resist the infectious disease. The immune system also remembers the disease so that it can respond quickly if we get infected later.

 

 

What is an immune response?

An immune response is how the body fights against infectious diseases. This can be broadly divided into two types: cellular immunity and antibody immunity.

 

 

Cellular immunity:

Specific cells directly attack and eliminate infected cells or control the infection.

 

 

Antibody immunity:

Antibodies, special proteins, find and neutralize the infectious disease, helping to remove it.

 

 

How long does the immune response last?

The immune response can weaken after a certain period. So, some vaccines need to be taken regularly to strengthen immune memory, allowing us to continue effectively resisting infectious diseases.

 

 

Why is the COVID-19 vaccine important?

The COVID-19 vaccine is an essential injection that helps resist the new coronavirus. It prevents severe symptoms and enables quick recovery if the body is infected with the coronavirus. Through extensive research and clinical trials, safe and effective COVID-19 vaccines have been developed, allowing us to lead healthy and safe daily lives.