Drug hypersensitivity syndrome (DHS) is a severe medication reaction involving multiple organ systems that is characterized by rash, lymphadenopathy, and laboratory aberrations, including hepatic enzyme changes. Viral reactivation in the setting of DHS can significantly affect the course of disease. We report two children in whom parvovirus infection prolonged and complicated their course of DHS. Most other DHS-complicating viruses are herpesviruses; this report broadens the scope of DHS-modifying infections to include activation of Parvoviridae.
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