Baby Sam's rash is mimicking measles

With the contagious culprit ruled out, what was the real cause of this infant’s rash?

Sam, aged 12 months, was brought into the ED by his parents with a two-day history of rash, associated with a five-day history of fever, coryzal symptoms and decreased food intake.


There was no associated cough. Two days before the onset of the fever, Sam had received his 12-month MMR, haemophilus influenzae type b and meningococcal C vaccinations.1

He had last attended childcare two weeks before presentation. There was no significant history of travel or infectious contacts. His past medical history was unremarkable; he was