What are the symptoms of a human coronavirus infection?
Human coronavirus usually causes mild to moderate upper respiratory tract illness, similar to a common cold. Symptoms often include runny nose, headache, cough, sore throat, and fever. Most people contract the illness at some point in their lives and it usually only lasts for a short time. Sometimes human coronaviruses can cause lower respiratory tract infections, such as pneumonia or bronchitis. This is more common in infants, the elderly, or individuals with weakened immune systems. In some serious cases, such as with 2019-nCoV, the virus can cause severe acute respiratory syndrome, pneumonia, kidney failure, and death.