A scientist who is helping to treat thousands of people living with HIV and tuberculosis (TB) in South Africa was awarded the Royal Society Pfizer Award at a ceremony last night (27 October). Dr Linda-Gail Bekker's research looks at how TB epidemiology has changed in the HIV era. Researchers estimate that more than one in ten of all South Africans over 2 years old were living with HIV in 2008. South Africa has also seen a six fold increase in tuberculosis rates in the last 20 years.