MRCP2-2670

MRCP2-2670

A 15-year-old, unvaccinated child is brought into the emergency department after possible exposure to measles. The child has juvenile arthritis well controlled on methotrexate but is otherwise well with no other medical issues. His mother explains that the child attended a large party 2 days previously and she received a call this morning informing them that another child who attended the party has just been diagnosed with measles. She has no further information regarding the other child or as to whether they were symptomatic etc.

The 15-year-old reports no symptoms currently and appears well in the emergency department. His examination is unremarkable and observations are as follows:

Heart rate 95 beats per minute
Blood pressure 118/78 mmHg
Respiratory rate 18 breaths per minute
Oxygen saturations 99%
Temperature 36.5 ºC

What is the most appropriate management option?