Plane travel: Carry disinfectant wipes and wipe down everything you might touch (seat pockets, tray tables, armrests, etc.). Have antiseptic hand lotion and use if after the wipe down. Offer them to your seat mate as well. If possible, stay out of the toilets; if not, use same procedure with wipes and lotion. Air is probably safe (at least the aircraft ventilation). Most are HEPA filtered and the air is bleed air from the engines. If someone sneezes / coughs, the particles can travel 6 ft. or more if not captured in a tissue or handkerchief. All airlines have implemented increased cleaning procedures but not completely thorough. Masks (even N-95 non custom) serve little purpose except with those already infected to help prevent spread. The primary mode of transmission is touching a contaminated surface and then your nose, mouth, eyes, etc.). The regular Flu this year is primarily an influenza B strain and is more potent than the more typical influenza A strain. Currently much more widespread than COVID 19 worldwide. Travel safe.
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