enterobacteria

enterobacteria

live in the GI tract. Are bacilli and coccobacilli. Typically have peritrichous flagella

E. coli

opportunistic enterobacteria. Identified by O, H, and K antigens. causes diarrhea, fatal hemorrhagic colitis, or kidney disorder called hemolytic uremic syndrome

most dangerous strain of E. coli

O157:H7

opportunistic enterobacteria

Klebsiella, Serratia marcescens, enterobacter

Salmonella

true pathogenic enterobacteria. Salmonella enterica only infects humans

Shigella

true pathogenic enterobacteria. Most dangerous pathogen has a 20% mortality rate. Secretes endotoxin which stops protein synthesis (shiga toxin)

Yersinia

true pathogenic enterobacteria. Causes bubonic and pneumonic plagues

Salmonellosis

caused by ingesting food contaminated with feces, treatment is symptomatic