Parvovirus viruses are usually spread from an infected person to others through:
- close personal contact, such as touching or shaking hands
- droplets by coughing and sneezing
- Blood or blood products
- touching an object or surface with parvovirus on it, then touching your mouth, nose, or eyes before washing your hands
Infection is most common in children aged 6 to 10 years, but can occur at any age.
A person with Parvovirus is infectious seven to ten days before the rash (if any) develops, until one day after the rash appears.
It is important to note that many people (up to 30%) with Parvovirus B19 have no symptoms at all. Less than 50% have a rash.