VBA - Yersinia Pestis (Plague) Flashcards
1
Q
Morphology
A
Gram negative
Safety-pin shaped in blood
2
Q
Classification/Diagnosis
A
test by gram stain of buboes, blood, spinal fluid, fluorescent antibody test
3
Q
Pathology
A
extracellular pathogen, forms biofilm to block flea digestive tract, keeps flea hungry, bites more, infecting hosts
Bacteria infect lymph nodes, become systemic
4
Q
Epidemiology
A
Vector is flea, reservoir is rodent
1000-3000 cases/yr worldwide
15 cases/yr in western US
Pneumonic plague is spread airborne from human to human
5
Q
Diseases/Symptoms
A
buboes (infected noes) within 2-6 days, fever, chills, headache, extreme exhaustion
6
Q
Treatment/Vaccination
A
Streptomycin, tetracycline
Prevent with pest control
