How long are you immune to the common cold after you have had a common cold?

It lasts about 2 to 3 days

I just read on another health website that the common cold is infectious for 1 day before and 1-3 days after your symptoms appear. For influenza, its 1 day before and 5 days after your symptoms...

The common cold tends to be most contagious when the symptoms are at their worst (usually day 2 to day 4 of the cold symptoms presenting themselves). That being said, a cold virus can be contagious...

Because the virus is so easily spread, it also changes all the time so your body cannot create defenses against it. Also, the virus spreads all over you body so whenever you take a breath, you spread...

its contagious so it gets spread really easily Also your body can't make itself immune to colds, because there's so many different colds going around. That's why there's no cold vaccine - it's...