Parvovirus B19, often called the "fifth disease virus," is more than just a childhood infection. This tiny, elusive virus can cause a range of symptoms, from a mild rash to serious health ...

Parvovirus B19 is a common virus that spreads from person to person. It’s mostly passed through respiratory secretions, like saliva, mucus, or sputum. These can spread when people cough or sneeze. You ...