Can you catch the same cold twice?
However, you can catch a second kind of cold virus after having a different kind before. The reason this happens fairly frequently is that common cold viruses mutate quickly into new forms. The virus may change only a tiny tiny bit, but technically, what you would be contracting causing a second cold is a mutated strain of the same cold virus, or a different one of the many hundreds of cold viruses around at any given time.
Your immune system makes anitbodies and has sort of a "memory card" so to speak, of the exact virus you had so that you can't get the same one again.
See the related question below for more detail about viral infections and the immune system.
You often catch colds because a cold is caused by a virus. Each time you catch a cold, your body makes antibodies that correspond to that virus. The first time it sees a virus, it takes time to make the antibodies needed to fight off that particular virus. Your body fights it off, and if it finds the same virus again, it can make the antibody needed before you get the symptoms of the cold…
No, once you have had an infection by a specific common cold virus and if you have an otherwise healthy immune system, you won't be sick with that same exact virus again. You could, however, become sick from a mutation of the virus you had. And the common cold is extremely efficient at mutating into new forms.
Catching a Cold Together Most likely, yes. There are three of us in the house and all three of us came down with the same cold symptoms, one after the other. You are much more likely to catch a cold when living in close proximity with others since the droplets from sneezes and coughs are in the air and on the surfaces around us.