About 60% of
fifth disease infections occur in children between the
ages of 5 and 15 years.1 Adults also may become
infected with parvovirus B19, although most people get fifth disease when they
are children. About half of people who have been infected with parvovirus B19
develop
immunity to the virus, which means they cannot get the
disease again.2
Outbreaks of fifth
disease infections are more common during the winter and spring months.
About 1 or 2 out of 100 women of childbearing age are infected during
pregnancy.1