<prompt> The etiological agent of Roseola infantum includesCMVEBVParvovirusHuman herpes virus 6  <response>: Roseola infantumA history of 3 days of high-grade fever in an otherwise nontoxic 10-month-old child with a blanchable maculopapular rash on trunk -Roseola.Mean duration- 6days - so sixth diseaseExanthem subitum.Nagayama spots-ulcers at the uvulopalatoglossal junction.DD - Measles, Rubella, Drug allergy.MC complication-convulsions recurrent seizurestemporal lobe epilepsy.Rx suppoiveSevere cases-Ganciclovir Foscarnet.Refer: Nelsons Textbook of Paediatrics, 19thedition, pg no:1117 