We are exposed all the time. They are in the air in aerosol form, or whatever is designated the term 'virus' anyways. Immune system is the key to fend off foreign invaders, indeed.
You are viewing a single comment's thread from:
We are exposed all the time. They are in the air in aerosol form, or whatever is designated the term 'virus' anyways. Immune system is the key to fend off foreign invaders, indeed.