LETTER Introducing opt-out HIV

testing in an acute medical admissions unit: does it improve testing uptake in those with lobar pneumonia? Current UK National Guidelines for HIV Testing recommend universal HIV testing for all medical admissions where the local diagnosed HIV prevalence exceeds 2 per 1000 population and that those with indi-cator diseases should always be offered testing in any setting.1 The Royal London Hospital serves a population with a high local HIV prevalence of 6.2/1000,2 four times that of the national prevalence and, therefore, a highly relevant setting fo