 an outbreak with multi drug resistant acinetobacter baumannii on a burn icu and its control with multifaceted containment measures an outbreak with multidrug resistant acinetobacter baumannii was identified in 27 patients hospitalized at a burn center transmission was likely propagated by direct transmission and indirect transmission from temporarily contaminated surfaces environmental sampling did not suggest a common source acquisition of the outbreak strain was associated with larger burn lesions and inversely associated with higher nurse to patient ratio 