tick born diseases Flashcards
how to ddx E. canis from E. ewingii
E. canis is in monocytes and e. ewingii is in neutrophils– this is a milder dz than canis
milder disease that e. canis but similar signs like fever, lethargy, adr
e. ewingii
general treatment for all tick diseases
doxycycline. if it doesnt work and the dog is positive consider chronic infection
what does ixodes scapularis transmit
anaplasma and lyme
what does the brown dog tick transmit (rhipic. sang)
e. canis, babesia canis
dermacentor variabilis- american dog tick. what does it transmit
RMSF
what does ambylloma maculatum (gulf tick) transmit
hepatozoon americanum
spinal hyperesthesia, cutaneous edema, thrombocytopenia, petechiae- vasculitis causing consumption of platelets
RMSF
replicates in the vascular endothelial cells
RMSF
polyarthritis, fever, lethargy
e. ewingii
most show no clincal sings but adr, thrombocytopenia, leukopenia- may spontaneously cure
anaplasma
fatal
hepatozoon americanum
severe muscle wasting periosteal inflammation and hypoglycemia
rads show periosteal inflammation. bone biopsy shows onion cysts
hepatozoon
treatment for hepatozoon
TMS, clindamycin for at least 2 weeks.
hemolytic anemia and thrombocytopenia, fever, lethargy
babesia
what is the treatment for babesia
imidocarb dipropionate or atovaquonate and azothromycin
what do we care about babesia
what species it is. do PCR
how do animals get hepatozoon americanum
ingestion of the tick
german shephards
e. canis and RMSF
greyhounds and PBT
babesia canis
morula in neutrophil
e. ewingii
anaplasma
pear shaped in RBC
babesia
waxing and waning, severe muscle wasting, generalized hyperesthesia, purulent ocular disease
hepatozoon
