Of course the immune system is related to a virus. Vaccines are not magic, what they do is allow the immune system to fight covid more effectively, by generating more antibodies. Sure it is possible that a young, healthy person gets a severe infection, but the probability for that to happen is very low.
Edit: Here is an easy to understand explanation how vaccines work.
I know, what I wanted to say is that it’s not like because you’re healthy person you’re going to do just fine against Coronavirus, you need to get vaccinated because the body is not capable of creating antibodies that are cable of fighting it without the vaccine.
Of course the immune system is related to a virus. Vaccines are not magic, what they do is allow the immune system to fight covid more effectively, by generating more antibodies. Sure it is possible that a young, healthy person gets a severe infection, but the probability for that to happen is very low.
Edit: Here is an easy to understand explanation how vaccines work.
I know, what I wanted to say is that it’s not like because you’re healthy person you’re going to do just fine against Coronavirus, you need to get vaccinated because the body is not capable of creating antibodies that are cable of fighting it without the vaccine.