MMWR Reports Nationwide TB Outbreak Caused Bone Allografts Using Live Cells

A new report from Morbidity and Mortality Weekly Report (MMWR) describes a nationwide tuberculosis (TB) outbreak reported in July 2023 caused by bone allografts containing live cells. This was the second outbreak of bone allograft–related TB in recent years and underscores the urgent need to implement improved donor screening and culture-based testing to prevent tissue-derived TB transmission. This investigation emphasizes the need for measures to protect patients from tissue-transmitted TB.