“Roseola” is a common illness in children ages 3 months to 4 years and is characterized by fever lasting between 3-7 days, followed by a rash that appears soon after the fever is gone. Roseola is caused by several different virus families including the enteroviruses, adenoviruses, parainfluenza virus. The most common virus that causes roseola is called HHV-6. So, yes, it is possible to get a “roseola-like” illness more than once.
“My 14.5 month daughter is having another bout of roseola. She had roseola around ten months of age and today her doctor tells me that her high fever and rash is roseola. Is it normal for roseola to recur? Does this infer that she may have some type of immune system deficiency in some way?”