This self-instructional module is designed to inform health care providers about the concept of universal precautions, which has been recommended by the U.S. Public Health Department as a way of minimizing the risk of occupationally acquired human immunodeficiency virus (HIV), infections, and the potential development of acquired immunodeficiency syndrome (AIDS). The module covers the modes of HIV transmission and describes in detail the infection control strategies that should be used when implementing universal precautions. Various practice activities are provided throughout the module for reinforcement. A postassessment is included to help the learner evaluate personal achievement of the listed learning objectives. A discussion of the importance of implementing universal precautions to prevent the spread of other infectious agents is also included. The module has been field-tested by a selected group of learners. (MN))