24. CURRENT SITUATION AND FACTORS RELATED TO HEPATITIS C VIRUS INFECTION IN PATIENTS ON METHADONE TREATMENT IN HA LONG CITY IN 2022. YHCĐ. 2025;66(CĐ3-HNKH Ký Sinh Trùng VN lần thứ 51). doi:10.52163/yhc.v66iCĐ3.2144