关于呼吸道合胞病毒，这些事项请知悉

Core Insights - Respiratory syncytial virus (RSV) is a common respiratory pathogen in China, with seasonal outbreaks primarily occurring in autumn and winter, while some southern provinces may experience year-round circulation [1][2] - The general population is susceptible to RSV, but infants, the elderly, and individuals with chronic underlying conditions face a higher disease burden [1][2] Group 1: Infection Characteristics - RSV is the leading cause of acute respiratory infections in children, especially infants, with early symptoms resembling those of a common cold, including cough, sore throat, runny nose, and fever [2] - Severe clinical symptoms can develop, such as bronchitis and pneumonia, with rare cases leading to RSV-related encephalopathy [2] Group 2: Vulnerable Populations - Healthy adults typically exhibit mild upper respiratory symptoms upon RSV infection, but they should maintain respiratory and hand hygiene to prevent transmission [2] - Elderly individuals and those with chronic lung disease, cardiovascular disease, or immune deficiencies are at risk for severe lower respiratory infections, which may worsen heart and lung function [2]