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A 43-year-old man, a known case of diabetes mellitus and hypertension (both well controlled), with no history suggestive of high-risk sexual behaviour, presented with a painless swelling over the left side of the neck since 30 days which was insidious in onset and gradually progressive; fever since 15 days which was of sudden onset, intermittent, relieved with medications and was associated with generalised bodyache; diarrhoea since 3 days which was sudden in onset, foul smelling, watery, non-bloody, 7–8 episodes per day. He had lost 4 kg of weight in 15 days. He was a vegetarian, did not keep cats as pets and was not known to be having an immunocompromised state.