Activity of biogenic silver nanoparticles in planktonic and biofilm-associated .

is a gram-positive bacterium and is the etiologic agent of caseous lymphadenitis (CL) in small ruminants. This disease is characterized by the development of encapsulated granulomas in visceral and superficial lymph nodes, and its clinical treatment is refractory to antibiotic therapy. An important virulence factor of the genus is the ability to produce biofilm; however, little is known about the characteristics of the biofilm produced by and its resistance to antimicrobials.