Enterobacteriaceae Flashcards
Enterobacteriaceae genera
Yersinia
Salmonella
Shigella
Characteristics of Enterobacteriaceae
Non-lactose fermenters
Glucose fermenter
Facultative Anaerobe
Not members of normal flora
Pathogenic
Virulent
Yersinia spp
G (-), Short rod
Pleomorphic
Catalase +
Oxidase -
Yersinia pestis hosts
Rats
Mice
Voles
Antigens produced by yersinia pestis
V and W antigens
Transmission of Y. pestis
Bites of hosts
Disease caused by Yersinia pestis
Plague/Black Death
Major Forms of Plague
Bubonic Plague
Pneumonic Plague
Septicemia Plague
Most common form of Plague composed of 80-95% case
Bubonic Plague
signs and Symptoms of Bubonic Plague
High fever
Buboes - swollen lymph nodes
Transmission of Bubonic Plague
Rat Flea (Xenopsylla cheopis)
Contact with tissue fluid
Form of Plague where the blood carries bacteria to the lungs
Pneumonic Plague
Form of Plague where the bacteria enters blood and multiply
Septicemic Plague
Septicemic Plague is transmitted by
Flea bites
Contact w/ contaminated tissues and fluids
Treatment of Yersinia pestis
Streptomycin
Gentamicin
Fluoroquinolones