<prompt> cutaneous maculopapulary rash of the head and neck preceded by small ulcers in the buccal mucosa would suggest which of the following?Primary herpes simplex infectionRubeolaVaricellaPrimary syphilis  <response>: The maculopapulary rash of rubeola measles is preceded by the herald sign of Koplicks spots punctate ulcers of the buccal mucosa 