To avoid getting sick, I always wear a mask when I go out, especially when I am going to be in a crowd. Water and soap are best for washing hands, but when going out it is very important to have an antibacterial with us. I take Vitamins D3, C, and B-Complex, plus I take a Magnesium (Glyconate) supplement and Ubiquinol. I have asked family and friends to alert me when they are sick or have a cold, so that I will know when not to visit. This was also a tactful way to let them know that I also do not need visitors who are sick. J