Add punctuation to the following sentence: This causes our immune defence to become familiar with the substance so that it can react to it much faster and more effectively should it appear in our body in the form of a cancer or an infection with a microorganism that contains this very antigen
This causes our immune defence to become familiar with the substance so that it can react to it much faster and more effectively should it appear in our body in the form of a cancer or an infection with a microorganism that contains this very antigen.