These substances have become staples of the molecular biology community. As such, it is important for users to understand their origins and potential implications. Working with Viral Vectors contains  virus-specific details about virology, clinical features, epidemiology, treatment, laboratory hazards, personal protective equipment (PPE), disinfection, and use with animals. Refer to Recombinant Viral Vector Biosafety Levels for recombinant vectors and their biosafety levels.