We should concern ourselves less with viruses that enter our body and make us sick, and concern ourselves more with the vices that come from within us and prove that we are.
Consider the amount of time you spend each day trying to keep your body healthy; taking medications, eating healthy, and exercising. Today, take that same amount of time and use it to keep your soul healthy; take time to read the Bible, exercising the opportunity to pray, and helping someone in need.
And He was saying, "That which proceeds out of the man, that is what defiles the man. For from within, out of the heart of men, proceed the evil thoughts, fornications, thefts, murders, adulteries, deeds of coveting and wickedness, as well as deceit, sensuality, envy, slander, pride and foolishness. All these evil things proceed from within and defile the man.