Respiratory syncytial virus is common in childhood, but in some infants, it can cause serious illness. Here’s how to spot the signs and keep your child safe. Every year, respiratory syncytial virus (RSV) quietly circulates among Singapore’s youngest residents – often disguised as a common cold 1 . But in infants, this seemingly minor illness can lead to serious complications that require hospital care.  RSV consistently ranks among the top paediatric viruses detected at local polyclinics in