Researchers have been trying to develop antiretroviral medicines that can last for weeks, months or even years per dose. Two such long-acting formulations have been approved in South Africa, but several more are on the horizon. Elri Voigt explores the science behind what makes a formulation long-acting and takes a look at some particularly exciting prospects.
Long-acting injections have been successfully used as contraception and more recently HIV prevention. Now researchers are exploring whether similar long-acting injections could be used for the prevention and treatment of tuberculosis. Tiyese Jeranji reports.