When is a Respiratory Infection an Emergency? As the world devotes rapt attention with COVID-19, it is important to know what a respiratory infection is and when it is an emergency. The symptoms can be very much like COVID-19 and knowing the differences in symptoms is critical. Risks of Transmission for Respiratory Infections The common cold is the most common cause of doctor visits in the United States. URIs (Upper Respiratory Infections) spread from one person to another through … [Read more...] about Respiratory Infections