 This research used a novel in vitro human maternal fetal multicellular model to examine the effects of aflatoxin B1, AFB1, on fetal neural stem cells, NSEs. Even at low concentrations, AFB1 can cause significant damage to the NSEs, suggesting that it could have detrimental effects on fetal development. This article was authored by Jiwei Zhou, Dong Meiluo, Meng Xueli, and others.