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.
More top news
Several people are thought to have been killed in a fire at a traveller's site in the Republic of Ireland.
More than 90% of hospices in England have been rated 'good' or 'outstanding' in a wave of new inspections.
Britain's youngest MP in 350 years said that the Commons still has a 'boys club atmosphere' which is 'alive and well'.