8th July 2023

A 53-year-old male with a background of diabetes presents with an expanding erythematous rash on his right arm and associated lethargy

A 53-year-old male with a background of diabetes presents with an expanding erythematous rash on his right arm and associated lethargy. On examination, he has a low grade fever and a 5cm round erythematous patch with central clearing. He reports that he went on a camping trip in Exmoor 2 weeks ago. You suspect the rash is erythema migrans. What is the expected time period for the appearance of erythema migrans following infection?

Select the SINGLE most appropriate option from the list below. Select ONE option only.