Original ResearchPublished 23 July 2026Biofilm formation in Acinetobacter baumannii isolates from companion animals and horses: associations with host, clinical origin, antimicrobial resistance, and clonal lineageJohanna Rühl-Teichner · Ursula Leidner · Torsten Semmler · Christa EwersFrontiers in Bacteriologydoi 10.3389/fbrio.2026.1874938