How does our skin protect us from bacteria and viruses?

The average adult has over 8 lbs. of skin, and it is the largest organ in your body. Your skin serves many purposes, but one of its major functions is to protect the body from infectious organisms, such as parasites, bacteria or viruses, that cause disease. read more

The skin isn't just a single layer -- it's composed of 2 basic layers: the epidermis, which is the main barrier to water and infection, and the dermis, which essentially connects the epidermis to the rest of the body. read more

If your skin is injured, such as from a blister, a splinter, a cut or a burn, bacteria can enter your body and cause an infection. Sebum The inner layer of your skin, called the dermis, contains several different types of cells that protect you from disease. read more

We don’t have bacteria to protect us from other pathogens, but the bacteria we have will help us in an indirect way. The bacteria on our skin are either in a mutualistic or commensal symbiotic relationship with us, meaning there is benefit to one or both parties. read more