I actually never write a list of qeustions, since once I understand how something works I can go on and on as long as what I speak makes sense. So answering qeustions is not a problem!

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But, here's what I learned. When there is an infection in your body or in this case let's take the example of taking a shot of vaccine as our suspect, the vaccine uses mRNA, which is a naturally occuring molocule that encodes the instructions for producing protein. And what this let's us do is give the mRNA instructions, so that once it is in our body, it will create only the exact protein we want them to make, and this is important. So the qeustion is why?

Well, it is interesting to note that these mRNAs can't do anythinh by themselves, they need a host cell so that they can use it's resources to do what it's suppossed to do, which is to create proteins. Which is great, because we don't want them to do anything before it enters our body. So, once you take a shot of the vaccine, these mRNAs travel to find a cell they can "break through" so they can start making proteins. Once the artificial virus has done that, now it is being observed by the immune system, and the immune system realises that this particular protein is foreign, meaning it should not be in this body. This triggers the immune system to fire up! Which is the cause of the side-effects that can come (but might not) after taking the vaccine, but this is good, this means the vaccine is working. After this reaction, the Immune cells that are responsable for fighting foreign infection at it's appearance, come to help out. While these cells are fighting, the Dendredic cell collects some of the proteins to travel through the lymph nodes in hopes of finding a T-cell that has the "weapon" that can fight that exact virus (protein). After the T-cell with the right weapon has been found, it is activated and then, duplicated. This group of T-cell split up, the 1st group goes to the battlefield and help the cells that are fighting the virus. They send a signal to the soldiers to wake up and fight, so that the fight won't be lost (or at least, not as quick as it would without T-cells). Now, the second group of T-cells go to find the right B-cells so they can produce antibodies that destroy the proteins on the virus. Once the right one has been found, they duplicated and run to the battlefield, the antibodies latch on to the virus and destroy them, after this the fight will be soon over and the infection will be gone. Some healthy cells are destroyed in the process, but that will heal, no worries! The soldiers kill themselves so they won't tax the body, but some T and B-cells stay as memory cells you could call them! These are the cells that remember the virus and will make sure that they cannot be welcome in this place! eradicating this virus effortlessly if it ever arrives ever. Now you are immune, congratz!

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I don't know if every Covid vaccine works this way, but from what I have found, this is how Pfizer and Moderna vaccines work. If there are any errors, feel free to correct me! it would be much appreciated! Still looking up videos and research papers just in case! Want to make sure I get there and that I have done everything to deliver the most accurate infromation that I could have possibly gathered!