Original ResearchPublished 12 October 2026Brief antibiotics exposure during adolescence produces persistent effects on the microbiome and fentanyl-seeking during adulthood in ratsRebecca S. Hofford · Ava L. Shipman · Weiwei Wang · TuKiet T. Lam · Drew D. KiralyFrontiers in Behavioral Neurosciencedoi 10.3389/fnbeh.2026.1916554