Original ResearchPublished 6 August 2026Mixed-strain infection and heteroresistance in drug-resistant tuberculosis: insights from a whole-genome sequencing pilotMandlenkosi Manika · Lindiwe Modest Faye · Ntandazo Dlatu · Mojisola Clara Hosu · Teke ApalataFrontiers in Epidemiologydoi 10.3389/fepid.2026.1813571