14th February 2024

A 27-year-old male has a history of C7 deficiency diagnosed in childhood

A 27-year-old male has a history of C7 deficiency diagnosed in childhood. He presents with a three-day history of headache, fever and a purpuric rash on his torso. He appears unwell. An LP confirms meningitis.

Which is the most likely causative organism?

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