Proteus vulgaris
Salmonella enteritidis
Yersinia pestis
Enterobacter aerogenes
Escherichia coli
Klebsiella pneumoniae
Shingella
Salmonella typhi
Vectored into humans by bites of infected fleas, causes plague. Bubonic plague (mortality rate 50-75%), pneumonic plague (nearly always kills.) Probable cause of "Black death."
Resembles E. coli except it almost invariably produces a variety of enterotoxins.
Cause of salmonellisis aka food poisoning.
Highly motile. Live in intestines of humans and other animals.
Cause of pneumonia in elderly and immunocompromised.
"The prokaryotic guinea pig." Some stains cause diarrhea and strain 0157:H7 is pathogenic (hemolytic uremic syndrome, has killed people, esp. children)
A.k.a. the 'enteric' bacteria. Live in intestines of humans and other animals. Generally ferment glucose and various other carbs (which help us identify them.) Generally nonpathogenic but can cause urinary tract infections and wound infections.
Cause of typhoid fever, a big killer before good sanitation practices.
