A 24-year-old man presented to a general practitioner (GP) with a fever. This has been present on and off for 3 days. On the first day he felt a little shaky but by the third day he felt very unwell with the fever and had a feeling of intense cold with generalized shaking at the same time. He felt very sweaty. The whole episode lasted for 2.5 h, and he felt drained and unwell afterward. He felt off his food. Medical history: There is a previous history of hepatitis 4 years earlier and he had a glandular fever at the age of 18 years.
Social history: He smokes 15–20 cigarettes each day and occasionally smokes marijuana. Medication history: He has taken no other medication except for malaria prophylaxis. Physical Examination Pulse - 94/min Blood pressure - 118/72 mmHg. There are no heart murmurs. There are no abnormalities to find in the respiratory system. In the abdomen, there is some…
