İştahsızlık, halsizlik, yüksek ateş ve anemi semptomu gösteren 3 yaşında montofon bir ineğin giemsa ile boyalı kan frotileri yapıldı. Bunların mikroskopik muayenelerinde; eritrositlerin yüzeyinde, 1-50 adet arasında değişen sayıda yuvarlak şekilde Eperythrozoon wenyoni, eritrositlerin çevresinde zincir şeklinde Haemobartonella bovis ile birkaç tane Theileria sp. bulundu.
Türkiye'de klinik olarak yoğunlukla E. wenyoni, daha az yoğunlukta H. bovis'in görüldüğü hasta bir sığıra ilk kez rastlandığı bu çalışma ile ortaya kondu.
In a three years old Brown Swiss cattle showing the signs of fever, loss of appetite, exhaustion and anemia, blood smears stained with Giemsa was done. In the microscopic examination, round-shaped Eperythrozoon wenyoni on the surface of erythrocytes, in the numbers ranging from one to 50, a few chain-shaped Haemobartonella bovis on the peripher of erythrocytes and Theileria sp. were detected.
This study reports the presence of clinically E. wenyoni and H. bovis in cattle, for the first time in Turkey.
Giriş
Eperythrozoon and Haemobartonella are rickettsial parasites of the family Bartonellaceae. The organisms are procaryotic forms occuring on the surface of erythrocytes. On Giemsa-stained blood smears, it appears as a pleomorphic coccoid or vesicular organism on the surface of the erytrocytes. Infections are common worldwide in cattle [2]-[4], [8].
Olgu Sunumu
A three year old unhealthy Brown Swiss cattle showing the signs of fever (41,0 °C), loss of appetite and exhaustion was submitted from Bulanık/Muş in December 2002. These signs were observed nearly one month ago, and anemia was determined in the clinical inspection. In the microscopic examinations of blood smears stained with Giemsa; round-shaped Eperythrozoon wenyoni, in the numbers ranging from one to 50, was observed only on the surface of erythrocytes in highly-dense parasitemia, while chain-shaped Haemobartonella bovis was seen on the peripher of erythrocytes in less-dense parasitemia. In addition, a few Theileria sp. were detected in the microscopic examination.
In clinical examination, tick was not found on the animal and swelling was not present in lymph glands. Body temperature, heart frequency and respiration number were found 41.0 °C, 92 and 36 respectively. Ruminal movement was observed 5/5min. In examination of ruminal content, PH was 7.0, infuzoria amount was ++-, in blood examination; RBC was found to be 2.0x10 6/cu mm, MCV 76/cu μ and PCV 20%. Presence of anemia was revealed with these results. The microscopic examinations of blood smears dyed with Giemsa showed 1-50 items of round and roundish shaped E. wenyoni (Figure 1) in dense parasitemia only on the surface of erythrocytes, chain shaped H. bovis (Figure 2) around erythrocytes in less dense parasitemia and a few Theileria sp in all the microscopic area.
Figure 1: Eperythrozoon wenyoni x 236
Figure 2: Haemobartonella bovis x 227
The animal recovered within 3 days following oxytetracyclin application (three days, daily 10 mg/kg IM).
Tartışma
In the investigations [1]-[6], [8], clinical symptoms related to eperythrozoonosis and haemobortonellosis were shown. Although E. wenyoni was shown as the cause of anemia, it was stated that not anemia but only leucopenia was seen in the 2 cattle that factor was determined [7]. This study reports the presence of clinically E. wenyoni and H. bovis in cattle, for the first time in Turkey.
References
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