Fifth disease

Erythema infectiosum
Other names	Fifth disease, slapped cheek syndrome, slapcheek, slap face, slapped face[1][2]
16-month-old with erythema infectiosum, displaying characteristic red rashes
Specialty	Infectious disease
Symptoms	Red rash, especially on cheeks and harsh coughs
Causes	Human parvovirus

Fifth disease, also known as erythema infectiosum and slapped cheek syndrome,^[3] is a common and contagious disease caused by infection from parvovirus B19.^[4] This virus was discovered in 1975 and can cause other diseases besides fifth disease.^[5] Fifth disease typically presents as a rash and is most common in children. While parvovirus B19 can affect people of all ages, only two out of ten individuals will present with symptoms.^[6]