> As we know, COVID infections are almost unknown when infected individuals consistently wear a high-quality fitted mask. Suppose you're visited by a home heal

> As we know, COVID infections are almost unknown when infected individuals consistently wear a high-quality fitted mask. Suppose you're visited by a home health aid everyday and in every instance of mask application the protective rate is 99.999%. That means at each instance (each day), you have a 0.001 risk of contracting COVID. If we extrapolate out, after four years, the risk of contracting COVID is 1.5%. Now suppose you have two or three visitors each day. Your risk is now 4.3%. Even 'unheard' of risks become quite common as you tempt fate.