Well, that depends, how fast can you run?
Colds are quick!

Only once, in these last few years have a caught the flu.
My roomies came back with it after being gone for a long time.
Just as the real Wuhan-flu outbreak was occuring (getting out over seas) back in February.

You need vitamins.
If you are catching colds that many times, you do not have enough of the vitamins to keep your body system running with all the stress you are working with.

Vitamin D is the most important. (for colds)
Remember the USDA recommended daily allowance is the basically the point at which, having a little less, leads to death. In other words, its not adequate at all.

Next is vitamin C.
Again you need a lot more than you are a getting.
You can eat as much vitamin C as you want. An overdose will just cause you to go the bathroom and spew water from you butt like a fire hose. If you get to that point, back off a little bit.

You really want Vitamins A B C D E K and zinc.