The Tuberculosis Laboratory of the Pasteur Institute of Iran in Tehran participated in the 2024 external quality assessment program organized by the National Reference Health Laboratory of the Ministry of Health and Medical Education. This program was conducted in collaboration with the Supra-national Reference Laboratory Network (SRLN) in Sweden and aimed to evaluate the laboratory's ability to determine the sensitivity of Mycobacteria to first-line tuberculosis treatment drugs. The laboratory successfully achieved an Excellent Ranking for its assessments of Isoniazid, Rifampicin, and Ethambutol treatments.

Since 1994, the SRLN continues to be a key technical resource in support to the strengthening of the laboratory capacity in countries. Under WHO coordination and support, the SRLN has expanded from initial 14 to actual 28 Supranational Reference Laboratories (SRLs) and four National Centres of Excellence (NCE-SRL), largely driven by regional initiatives and institutional interest in joining the WHO SRLN network