Please enable JavaScript.
Coggle requires JavaScript to display documents.
Ticks and Rickettsial Disease: Anaplasma phagocytophilum - Coggle Diagram
Ticks and Rickettsial Disease:
Anaplasma phagocytophilum
:horse:
older name: equine granulocytic ehrliciosis
Equine Anaplasmosis
common infections in tick regions
usually subclinical
fairly high seroprevalence (20-40%)
exposure depends on lifestyle
clinical signs
acute dz
incubation period up to 14d
early
high fever (>101.5)
depression
inappetence
later (24-48h)
tachycardia
peripheral edema
icterus
reluctance to move
vasculitis
peripherial edema
limbs
venture
petechiae
mucus membranes
less common
ataxia
cardiac arrhythmia
rhabdomyelitis
myocarditis
tropism
neutrophils
eosinophils
observe morulae on blood film
diagnosis
CBC
morulae in neuts and eosins
false negatives
best after 3-5 days illness
anemia
neutropenia
lymphopenia
thrombocytopenia
blood PCR
serology
low sensitivity in acute dz
treatment
tetracycline antibiotics 5-7d
oxytetracycline IV sid-bid
minocycline PO
doxycycline PO
rapid clinical improvement
excellent prognosis
prevention
no oral acaricides for horses
environmental management
mow pasture
remove large brush
topical treatments
fly sprays
pour-on
extra-label use Frontline spray