Synonyms

 

No known synonym

 

Name of the disease in English

 

Theileriosis

 

The disease in brief

 

Disease notifiable to the OIE-2018

Theileria are unicellular hemoparasites which cause diseases transmitted by ticks in many regions of the world: In France, we know Theileria buffeli (N45), a benign disease; but other Theileria produce serious diseases:

 

-T. parva causes serious problems in Central and East Africa: It is East coast fever, caused by T. parva and transmitted by the tick Rhipcephalus appendiculatus.

 

-T.annulata causes serious problems in Southern Europe, North Africa, Middle East, India and Asia: Mediterrannean cost fever transmitted by the Tick Hyalomma sp..

 

Cured infected cattle remain carriers and so do ticks.

 

These single-celled parasites multiply in lymphocytes, block capillaries, and then pass into red blood cells causing hemolytic anemia. The lethality can be high in a newly infected area depending on the treatments implemented.

 

Clinic & diagnosis

 

The disease is suspected by observing:

 

- Pale to pale yellow conjunctival or vaginal mucous membranes

 

-Fever

 

- Isolated or multicentric lymph node hypertrophies.

 

Typical sign of the disease

 

No description

 

Pictures

 

See below

 

Diagnostic formulas

 

No description

 

Differential diagnosis

 

-Theriosis caused by T. Buffeli N45

 

-Erythrocyte Anaplasmosis UR15.2

 

-Babesiosis UR14

 

-Babesiosis-Mixed infection-Anaplasma / and / or Theileria buffeli- / OR M.Wenyonii N9

 

-Mycoplasma weynyonii (Infection with) N33

 

-Poisoning by copper N23

 

Confirm a suspicion?

 

The authorities must be alerted via the DSV to know the official confirmation modalities. A blood test, carried out if possible on a peripheral vein (ear) with an anticoagulant tube (EDTA-Tube purple cap) will allow a histologist to confirm the disease or other hemoparasites.

 

Prognosis and treatment

 

Treatment is possible with buparvaquone, 2 to 5 mg / Kg bodyweight.

 

Prevention

 

The authorities must be alerted via the DSV to know the official control strategy chosen.

 

References

 

-Veterinary Medicine-Pocket companion -9th Edition BLOOD DC-page 470