We have two major gateways into our body: our mouths and our airways. There are two more, your skin if lacerated and your rectum. You may think me punctilious for giving you the following info but it is important for you to take this as gospel!
I regularly see people putting their hands on the tops of drinking utensils which means that a small portion of what is on their hands will enter the person’s body doing the drinking ─ Egad! If you must touch the utensil’s top drink from the opposite side is good advice. If at a restaurant and the server handles the utensils in a careless manner by touching something you will put in your mouth ask that it be replaced. When working out at the gym use sanitizing solution or wipes just after you finish.