De Vico G, Macrì B, Sammartino C, Loria G R
Dipartimento di Patologia, Malattie Infettive e Parassitarie ed Ispezione degli Alimenti di Origine Animale, Facoltà di Medicina Veterinaria, Università degli Studi di Messina, Italy.
Parassitologia. 1999 Sep;41 Suppl 1:37-8.
In this study, the authors report the preliminary pathological features of an outbreak of spontaneous babesiosis detected in a group of thirty-five, five to six months-old Simmenthal calves imported in Sicily in November 1998. Five of them showed fever, anaemia, haemoglobinuria, inappetence, depression, thirst, swollen lymph-nodes and poor body conditions a few days after being introduced in the farm. Several ticks were present particularly at the basis of the horns and near the ears of the sick animals. Blood smears, stained with May-Grunwald-Giemsa, showed several pyriform merozoites in the red blood cells referred to Babesia bigemina parasites; all ticks collected were identified as Dermacentor marginatus. Gross post-mortem examination and histopathological observations revealed severe involvement of kidneys, liver, lungs, spleen and lymph-nodes. The pathogenesis of the referred features in a spontaneous fatal case observed is discussed.
在本研究中，作者报告了1998年11月进口到西西里岛的一群35头5至6月龄西门塔尔犊牛中检测到的自发性巴贝斯虫病暴发的初步病理特征。其中5头犊牛在引入农场几天后出现发热、贫血、血红蛋白尿、食欲不振、抑郁、口渴、淋巴结肿大和身体状况不佳。患病动物的角基部和耳朵附近尤其有几只蜱虫。用美-格-姬氏染色的血涂片显示红细胞中有几个梨形裂殖子，提示为双芽巴贝斯虫寄生虫；采集的所有蜱虫均被鉴定为边缘革蜱。大体尸检和组织病理学观察显示肾脏、肝脏、肺、脾脏和淋巴结严重受累。讨论了在观察到的一例自发性死亡病例中上述特征的发病机制。
