A coronavirus such as SARS or MERS is a virus that often causes symptoms similar to a cold. While some are serious, most are not. To prevent catching a coronavirus, take precautions such as washing your hands and staying away from others who are infected. Follow the links below to find WebMD's comprehensive coverage about how coronaviruses spread, treatments that can help, and much more.
A coronavirus is a common virus that causes an infection in your nose, sinuses, or upper throat. Most coronaviruses are not dangerous.
Causes of the Common Cold
Just what is causing your misery? Learn more about the hundreds of viruses that can cause the common cold.
How Scientists Identify a Virus
Find out how scientists figure out that a virus -- and which virus -- is the source of a disease like SARS.