Zarnke R L, Erickson G A
Alaska Department of Fish and Game, Fairbanks 99701.
J Wildl Dis. 1990 Jul;26(3):416-9. doi: 10.7589/0090-3558-26.3.416.
Serum antibody prevalence of parainfluenza 3 virus in the free-ranging Delta bison (Bison bison) herd which is found near Delta Junction, Alaska (USA), increased from 0% to 100% during the period 1977 to 1984. Domestic cattle are hypothesized as the source for the infection. There has been no clinical disease or decrease in productivity in this bison herd since establishment of the infection.
1977年至1984年期间,在美国阿拉斯加德尔塔章克申附近自由放养的德尔塔野牛群中,副流感3病毒的血清抗体流行率从0%升至100%。据推测,家牛是此次感染的源头。自感染确立以来,该野牛群未出现临床疾病,生产力也未下降。