<prompt> Nagayama spot are seen in:MeaslesRoseola infantumMumpsRubella  <response>: b. Roseola infantumRef: Nelson 20e p 1594-1596Ulcers at uvulopalatoglossal junction Nagayama spots are commonly reported in infants with roseola infantum. High fever is the most consistent finding associated with primary HHV-6B infection. 