Welcome to the "Bloodborne Pathogens: Learn Your Risk" series of video lessons meant to teach you how to be compliant with OSHA’s bloodborne pathogen standards. This video lesson, "Bloodborne Pathogens: Learn Your Risk -- Introduction," is the first of three. From this lesson, the viewer will learn what bloodborne pathogens are and how they are spread. The lesson also explains OSHA requirements for exposure control plans and describes tasks and activities that are likely to cause exposure. Finally, the lesson discusses OSHA’s training standards.