<prompt> 24 hours after fever, maculopapular rash and erythema appears on the face of infant. This organism can also cause:ALLCMLPure red cell aplasiaHairy cell leukemia  <response>: The described lesion is slapped cheek rash seen in Erythema infectiosum caused by Parvovirus B19. Parvovirus B19 also causes Pure red cell aplasia. Diseases caused by Parvo virus B19:- Erythema infectiosum most common Transient arrest of erythropoiesis aplastic crisis Papular purpuric gloves-and-socks syndrome PPGSS 