Mononucleosis, commonly called mono, is a viral illness most often caused by the Epstein-Barr virus (EBV). Because mono is known for spreading through saliva, many people wonder whether they can catch it from shared objects or contaminated surfaces. Understanding how long mono survives on surfaces, and how it actually spreads, can help you take the right precautions to protect yourself and others. For same-day mono testing and treatment, visit the walk-in clinic at AFC Urgent ...