(A) Biofilm formation by strain TK1049. Graph shows quantification of biofilms formed after 3-day (Day 3) and 5-days (Day 5) in Brucella broth supplemented with 7% FCS. (B) Biofilm formation by strain TK1049 in Brucella broth supplemented with 0.2% β-cyclodextrin and addition of the OMV-fraction from TK1402 grown in 0.2% β-cyclodextrin medium. (C) SEM observation of TK1049 biofilms. *significantly different (p < 0.05).