Respiratory syncytial virus (RSV) has been gaining attention in recent years due to an increase in cases. RSV is a viral infection that affects your upper respiratory system. Although it can impact anyone, it is known for causing serious illness in young children. Learn about RSV, its causes and symptoms, and what to do if you think you might have it. Visit AFC Urgent Care Hillsdale for RSV diagnosis and treatment. Causes + Symptoms of RSV ...