Early defibrillation has been called the critical link in the Chain of Survival because the time from collapse to defibrillation often is the key indicator of survival from sudden cardiac arrest. But the strength of the early defibrillation link depends on the strength of the the links that precede it.
Wash your hands well. ...
Cover a cough. ...
Wash and bandage all cuts. ...
Do not pick at healing wounds or blemishes, or squeeze pimples.
Don't share dishes, glasses, or eating utensils.
Avoid direct contact with napkins, tissues, handkerchiefs, or similar items used by others.