A 45-year-old man with untreated HIV presents with fever, headache, confusion and right-sided weakness.

1. List four potential causes of his symptoms. 4 marks

2. List four investigations you might perform with justification. 4 marks

Your JMO has sustained a needlestick injury while managing the patient.

3. State four factors that would increase the risk of HIV transmission following a needlestick injury. 4 marks