Canine ehrlichiosis is caused by the obligatory intracellular bacteria Ehrlichia canis, which lives within monocytes in the blood. It is transmitted primarily by the brown dog tick and can also spread through blood transfusions. German shepherds are most susceptible. Clinical signs include hemorrhaging, uveitis, and abnormalities in blood counts. Diagnosis involves finding morulae in blood smears or through serological tests. Treatment consists of doxycycline or oxytetracycline antibiotics for 3-4 weeks along with fluid therapy and blood transfusions if needed. Control involves tick control, chemoprophylaxis, and vaccination.

1. CANIN EHRLICHIOSIS
ETIOLOGY : EHRLICHIA CANIS
IT IS OBLIGATORY INTRACELLULAR
BACTERIA LIVE WITH IN THE WITH IN BLOOD
CELLS ESPECIALLY IN MONOCYTES
TRANSMISSION BY :1. VECTOR
BROWN DOG TICK (RHIPICEPHALUS
SANGUINEUS)
2.BLOOD TRANSFUSION.
3.IT IS WORLD WIDE DISTRIBUTION (ASIA,
AMERICA, AFRICA)
4.GERMAN SHEPHERD ARE MOST
SUSCEPTIBLE .
PATHOGENESIS
1.HOST GET INFECTION
THROUGH TICK BITE
2.ORGANISM ENTERS INTO
THE HOST CIRCULATIPON
3.THROGHENDOCYTOSIS
ENTERS INTO THE
MONOCYTES
4.MULTIPLY AND FORM
MORULAE
5.RELEASE THE ORGANISM BY
RUTURE THE MORULAE
6.THEY INVADE THE OTHER
CELL THROUGH CYTOPLASMIC
PROJECTION
7.FINALLY THEY SPEAD
THROUGH OUT THE BODY .
Dignosis
1. base on clinical sing
2. Blood smear examination to find morulae in
monocyte.
3. Serological test .
4.Hemotology (THROMBOCYTOPENIA ,
PANCYTOPENIA and ANAEMIA).
5. serum biochemistry( (HYPOALBUMINEMIA,
HYPERGLOBUMINEMIA )
CLINICAL SIGN AND POST MORTEM LESIONS
1.PETECHIOAL HAEMORRAGE ( PIN POIN T HAEMORRAGE) .
2.UVEITIS ; INFLAMATION OF UVEI.
Treatment :
1. Antimicrobial therapy : DOXYCYCLIN -10mg/Kg -P/O-for 21
-25 days.
2. Oxytetracyclin-5mg/Kg-I/V-for 21 -25 days.
3. Fluid therapy
4. Blood transfusion
Control:
1.VECTOR ( Tick) control
2.Chemoprophylaxixs by using Teteracycline
@6.6mg/kg.
ASIF PASHA
VSK-1405
2ND BVSc and AH
3.EPITAXIS