Coronaviruses are a large family of viruses that can lead to illness in humans and animals. Human coronaviruses are common throughout the world, and can cause mild to moderate illness, like the common cold. Symptoms of infection by a coronavirus include:
Coronaviruses are most commonly spread from an infected person through cough and sneezing, closer personal contact, such as shaking hands, touching objects or surfaces that have the virus on it, and then touching your mouth, nose, or eyes before washing hands.
Coronaviruses are common and many laboratory test results doctors order may show a positive coronavirus infection. That infection is not the same as the 2019 Novel Coronavirus.