To ensure the quality of measles laboratory testing, each trimester the NRL sends 10% of the total measles and rubella samples received at the NRL to the Uganda Virus Research Institute (UVRI). The NRL also receives 20 panel specimens each year from the UVRI. The panels are tested and results are subsequently shared with UVRI. In 2004, the result showed good concordance and the NRL was subsequently accredited for measles laboratory confirmation by WHO/AFRO. In 2005, the Rwandan NRL obtained 95% concordance for measles and rubella testing.