What does it mean to be immune to a disease?

Answer 1

It Means You Cant Catch It. This Is Usually The Case If You've Already Had It As It Is Unlikely To Have It Twice
You are immune to chicken pox means you will not catch the infection. So that means you had an attack of chicken pox or you have taken chickenpox vaccine atleast two weeks back.

Answer 2

Yes. If you are socially immune to a disease, that means you are somewhere in which the disease cannot get to you (like a "clean room" in hospitals). If you are biologically immune to a disease, then that means your immune system can resist and fight off the disease on its own without the terrible symptoms.

Answer 3

You don't get it if you come into contact with the disease.

Also:

When you are immune to a disease, you do not catch it!

That happens for one of two reasons. First, you may have antibodies in your body which kill the pathogens that cause the disease. Second, the pathogens may require surface molecules of a certain type on a cell which a particular person does not have.

Answer 4

Well, it depends.

If you take some pills recommended by your medic, you should be protected, but not 100%.

But there are some disease, for ex., that if you had in the past, your body creates "anti-virus" cells, which can eliminate the disease, as they have fought against it in the past.

In my opinion, you can't be protected 100%.

Answer 5

It means you cant get the disease. For example when your sister gets a disease that runs in your family but only one person in the next two generations cant get it. you r immune to the disease.

Answer 6

it means you cant really get it or your body knows how to fight it off fast with out any damage

Answer 7

After a person has had a disease, the lymphocytes remain to produce more antibodies for that pathogen if the disease is encountered again. This is called IMMUNITY.