And why does it feel so much worse than a cold?
At the moment, there are no antiviral drugs that can treat or prevent rhinoviruses and enteroviruses.
A new molecule was found to stop cold viruses from hijacking human cells.
Clinical trials on a prospective type 1 immunization are set to begin next year.
Adults with divorced parents who remained in contact during their childhood, however, have no higher risk of catching a cold.