[Chinese guideline for the chemotherapy of multidrug-resistant/rifampicin-resistant tuberculosis (2026 edition)].

MDR/RR-TB patients with chronic hepatitis B virus (HBV) infection who meet criteria for antiviral therapy should initiate anti-HBV treatment as soon as possible. Anti-tuberculosis treatment may initiate concurrently or after liver function has stabilized. For those with chronic hepatitis C virus infection, concurrent initiation of anti-tuberculosis treatment and direct-acting antiviral agents is recommended (2, D).