1. Wash your hands and keep them away from your face
On the first day of residency training, we each got a handbook on how to survive it. The one piece of advice I remember was that we were to wash our hands frequently and avoid touching our mouths, noses and eyes; these vulnerable surfaces are where most germ transmission happens. Washing with plain soap is best—personally, I’m not a fan of antibacterial hand washes because they strip protective bacteria from your hands and may even irritate your skin.