No literature, but purely anecdotally ... I work in medical, and I've been wearing an N95 at work and in public indoors spaces (especially supermarkets) consis

No literature, but purely anecdotally ... I work in medical, and I've been wearing an N95 at work and in public indoors spaces (especially supermarkets) consistently. No cold / flu / SARS-CoV-2 in over 2.5 years. Actually no noticable communicable illnesses at all. I don't miss that congested nose. I don't miss the shivering cold on a hot day. I don't miss the hacking cough. I don't miss the horrible syrups and weird lightheadedness after taking some of the cold-flu meds. Masking up is rock'n'roll.