May 28, 2019 · Personal Protective Equipment Recommendations Clostridium difficile Toolkit for Long-term Care Facilities. Personal protective equipment (PPE) is worn to prevent: Resident-to-resident, health care provider-to-resident and resident-to-health care provider exposure to and possible colonization or infection with community-and health care-associated infectious agents including MDRO, and Nucleic acid, naturally occurring chemical compound that is capable of being broken down to yield phosphoric acid, sugars, and organic bases. Nucleic acids are the main information-carrying molecules of the cell and play a central role in determining the inherited characteristics of every living thing.