I cannot see why doctors and dentists with HIV shouldn’t be allowed to practise, especially if conditions are in place to ensure they are on antiretroviral medication and to monitor their viral load to ensure it remains undetectable. Certainly, there are procedures that I don’t think appropriate for an HIV-positive surgeon to conduct: open bowel surgery, for example, where bleeding directly into an open wound could occur. But for teeth extractions or taking blood or doing a lumbar puncture – all of which must be done with gloves anyway – there is simply no evidence to support a ban.