Is Upper Respiratory Infection Contagious? Complete Guide to Symptoms, Spread, and Prevention
Introduction Many people ask, “is upper respiratory infection contagious” when coughs, sore throats, and congestion begin spreading through homes, schools, and workplaces. Upper respiratory infections affect the nose, throat, sinuses, and airways. These infections develop quickly and often spread through direct contact, respiratory droplets, or contaminated surfaces. Viruses cause most cases, although bacteria can also …