Zoonotics Flashcards
flying squirrels
epidemic typhus- rickettsia prowazekii
rash from trunk to extrem
epidemic typhus- rickettsia prowazekii
no rash on palm or soles, DIC
epidemic typhus- rickettsia prowazekii
Tx epidemic typhus- rickettsia prowazekii
doxycycline or tetracycline
Dog ticks
RMSF - Rickettsia Rickettsii
Summer and Spring, Calf soreness
RMSF - Rickettsia Rickettsii
GA, NC, VA
RMSF - Rickettsia Rickettsii Intracellular
Rash ankles/wrist to trunk palm and soles
RMSF - Rickettsia Rickettsii
tx RMSF - Rickettsia Rickettsii
doxycycline - 25% fatal untreated
Weil-Felix test is
not confirmatory, must to IFA for RMSF - Rickettsia Rickettsii
Flea bite
Endemic Typhus - Rickettsia Typhi
Tx Endemic Typhus - Rickettsia Typhi
doxycycline Use ELISA to dx
Black legged tick - Ixodes
Anaplasmosis - Anaplasma phagocytophilia
“Rocky Mtn Spotless Fever”
Anaplasmosis - Anaplasma phagocytophilia
Morulae in Neutrophils
Anaplasmosis - Anaplasma phagocytophilia
Tx Anaplasmosis - Anaplasma phagocytophilia
doxycycline - high morbidity, low mortality disease
Lone Star Deer Tick
Ehrlichiosis - Ehrlichia Chaffeensis
Morulae in Monocytes
Ehrlichiosis - Ehrlichia Chaffeensis
No Weil-Felix, Blood Smear to dx
Ehrlichiosis - Ehrlichia Chaffeensis
Ehrlichiosis - Ehrlichia Chaffeensis Sx
conjunctival injection, flu like Tx with doxy
Cattle, Sheep, Goats - dairy products, viscera
Q Fever - Coxiella Burnetii
Inhalation most serious, low incidence but everywhere, very infectious
Q Fever - Coxiella Burnetii
Possible liver and heart involvement, atypical pneumonia
Q Fever - Coxiella Burnetii
Dx Q Fever - Coxiella Burnetii
serology Tx with doxy to decrease length of disease and risk of complications
Spirochete, Summer, NY, CT, PA, NJ
Lyme - Borrelia Burgdorferi
Ixodes Scapularis (East/Midwest) or Pacificus (West coast)
Lyme - Borrelia Burgdorferi
Disseminates to heart, joints, CNS
Lyme - Borrelia Burgdorferi
Bulls Eye rash
Lyme - Borrelia Burgdorferi
Stage 2 Lyme - Borrelia Burgdorferi
arhralgia, myocarditis, meningitis, Bell’s Palsy
Stage 3 Lyme - Borrelia Burgdorferi
arthritis in large joints, chronic progressive CNS disease
ELISA, Western Blot, PCR, can’t culture
Lyme - Borrelia Burgdorferi
Tx Lyme - Borrelia Burgdorferi
doxy, tetracycline, or amoxicillin early IV ceftriaxone or Pen G chronic
High Desert of Western US
Relapsing Fever - Borrelia Hermsii (ixodes) and Recurrentis (body louse)
Tx Relapsing Fever - Borrelia Hermsii and Recurrentis
tetracycline or doxy
dog urine, sewers, swimmers
Leptospirosis - Leptospira interrogans
mucosal or cut route dissem to liver, kidneys, lung, CNS
Leptospirosis - Leptospira interrogans
phase 1 Leptospirosis - Leptospira interrogans
flu + conjunctivitis
phase 2 Leptospirosis - Leptospira interrogans
jaundice, uremia (Weil’s disease), lung hemorrhage, aseptic meningitis
Dx Leptospirosis - Leptospira interrogans
history of exposure, IgM titer
Tx Leptospirosis - Leptospira interrogans
Pen G + vaccination for livestock and pets
small, pleomorphic gram neg rods, polar flagella
Cat Scratch - Bartonella Heneslae
oral cavity of cats
Cat Scratch - Bartonella Heneslae
endocarditis or encephalitis can occur but rare
Cat Scratch - Bartonella Heneslae
AIDS bacillary angiomas
Cat Scratch - Bartonella Heneslae
Dx Cat Scratch - Bartonella Heneslae
serology, Warthrin-Starry Silver stain
Tx Cat Scratch - Bartonella Heneslae
Azith if severe lymphadenitis