<unk>  is a species of pathogenic bacteria which forms opportunistic infections. 
There have been many reports of drug-resistant<unk>  infections among American soldiers wounded in Iraq.  These 'multi-drug resistant<unk> ' are often referred to as MDRAB.
Acinetobacter baumannii
Pseudomonas aeruginosa
Enterococcus faecium
Klebsiella
Bacillus anthracis
Stenotrophomonas maltophilia
Legionella micdadei
Burkholderia pseudomallei