Whatever precautions we take, it will never be enough. No matter how much you stockpile or wash your hands, there will always be a risk. But has it happened yet? Or is it a thought inside your unconscious mind?
The coward dies a thousand deaths, the brave person just one. If we accept our own death, if we accept that all forms are temporary including you and me, and if we stay in this present moment, now, then we realise that there are no problems, no fears, and if a situation occurs we deal with it, now. But until then, nothing has occurred.
Consciousness is the answer to fear, not more fear and more thoughts or large quantities of toilet paper.