What Causes Colds?
Viruses cause colds. Most cold-causing viruses are very contagious and are transmitted from person to person. Some facts about common colds are as follows:
- Although colds have been with humans likely for eons, the first common cold virus was identified in 1956 in England, so the history of the cause of colds is relatively recent.
- Of the viruses that cause a cold, the most commonly occurring subtype is a group that lives in the nasal passages known as the "rhinovirus." Other less common cold viruses include coronavirus, adenovirus, and respiratory syncytial virus (RSV).