RSV (Respiratory Syncytial Virus) infection in adults typically lasts about 1 to 2 weeks. Symptoms usually start 4 to 6 days after exposure and commonly improve within 3 to 5 days, but some symptoms like cough and fatigue can linger for several weeks. In healthy adults, the illness generally resolves within this timeframe, although individuals with weakened immune systems or underlying conditions may experience longer or more severe symptoms. Severe cases, especially in older adults or those with chronic health issues, might require hospitalization or extended recovery time.

Summary of RSV Duration in Adults

• Symptoms appear 4 to 6 days after exposure.
• Most adults recover within 1 to 2 weeks.
• The most severe symptoms often improve in 3 to 5 days.
• Cough and fatigue may last for weeks after other symptoms resolve.
• In severe cases or with underlying health conditions, illness and recovery can be prolonged.

This duration aligns with typical respiratory virus infections but can vary based on individual health status and complication development.