NHS workers are currently tested for HIV at the start of their career.
Anyone going into a job that could expose patients to potential risk is also tested.
Staff are obliged under professional codes of conduct to have a further test if they think they may have been exposed to HIV, but this is not legally enforced.
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Eilidh MacLeod, who lost her life in the attack, travelled to the concert with friend Laura MacIntyre who remains in hospital.
Temperatures not sliding far - around 20C at midnight in places, so another restless nights sleep as it stays uncomfortable and stuffy.
With lines catapulting right and centre in the complex investigation over Trump's links with Russia, this is how the story unfolded.