What is RSV ? 👉Respiratory Syncytial Virus (RSV) is a common virus that infects the lungs and airways, especially in infants and young children. 👉It often starts like a cold—with cough, runny nose, and fever—but can progress to wheezing or breathing difficulty. 👍RSV peaks in fall and winter and spreads easily through droplets and surfaces. 👉Most children recover at home, but babies under 6 months, premature infants, and those with heart or lung disease are at higher risk for severe illness,