Dermatology » Infections & Infestations

Erythema infectiosum

A mild infectious disease occurring mainly in early childhood, marked by a rosy-red maculopapular rash on the cheeks, often spreading to the trunk and limbs. Fever and arthritis may also be present. Sometimes used Latin name for fifth disease.

It is caused by human parvovirus B19. The disease is spread by contact with respiratory secretions. Return of the rash may be brought on by sunlight, heat, exercise, fever or emotional stress. Over a period of 1 to 2 weeks, the rash completely goes away. It is also sometimes associated with fever. If a pregnant woman becomes infected with parvovirus B19, it can cause significant harm to her unborn baby.

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