Werdin R E, Sorensen D K, Stewart W C
J Am Vet Med Assoc. 1976 Feb 1;168(3):240-6.
Six epizootics of encephalomyeltis in suckling pigs in Minnesota were attributed to infection with hemagglutinating encephalomyelitis virus. The disease occurred in 74 litters of pigs and was characterized by sudden onset of tremors, inappetence, weakness, atazia, and hyperesthesia, with high morbidity and case fatality rate. Pathologic changes consisted of marked nonsuppurative, nondemyelinating encephalomyelitis characterized by perivascular mononuclear cuffing, gliosis, neuronal death, and satellitosis. Clinical disease was limited principally to suckling pigs during a single farrowing period and did not recur in the herds involved during the ensuing 18 months.
明尼苏达州发生的6起哺乳仔猪脑脊髓炎流行被归因于血凝性脑脊髓炎病毒感染。该病发生在74窝仔猪中，其特征为突然出现震颤、食欲不振、虚弱、共济失调和感觉过敏，发病率和病死率很高。病理变化包括明显的非化脓性、非脱髓鞘性脑脊髓炎，其特征为血管周围单核细胞套袖形成、胶质细胞增生、神经元死亡和卫星现象。临床疾病主要局限于单个产仔期的哺乳仔猪，在随后的18个月里，受影响的猪群未再次出现该病。
