Professor Guy Thwaites, director of our OUCRU unit in Vietnam, tells us about his research on tuberculosis meningitis. Tuberculosis meningitis affects a fractions of TB patients but causes high levels of mortality and morbidity. A recent trial at OUCRU showed that aspirin can greatly improve outcomes. Such trial is typical of the work done in our Vietnam units, where all the research is focussed on improving the outcome for patients directly.