Which is an example of a physical barrier to infection

A typical example of a physical barrier to an infection is the SKIN

Explanation:

The skin is a protective coat that shields the tissue from exposure to physical contact, hence; act as a barrier to infection that would have easily penetrated into the body system. Skin has different layers that achieves this process, the outer layer, middle layer and the inner layer. every layer has its vital role to ensure infections are barred from entering the body through physical means

that information cannot be released except with patient permission or to immediate family members. you could state the patient is ok but you cannot give any information on the illness or on treatment being given.