Rivera S Alejandro, Ramírez M Cristina, Lopetegui I Patricia
Servicio Agrícola y Ganadero, Tucapel 140, Puerto Montt, Chile.
Vet Microbiol. 2002 Dec 20;90(1-4):45-53. doi: 10.1016/s0378-1135(02)00244-4.
The process of Bovine Brucellosis Eradication that began in 1996 in the 10th Region de Los Lagos of Chile will be reviewed. The region comprises the most important dairy area of the country and it has the largest concentration of brucellosis infected herds. Based on the information gathered by an epidemiological surveillance system, the results of the eradication process for the years 1996 till 2001 are presented as rates of Milk Ring Test (MRT) positive dairies, rates of brucellosis reactors (bovines) in livestock markets and slaughterhouses, and the annual incidence and prevalence of brucellosis infected herds. During the period the rates of positive dairies, bovine reactors in livestock markets and slaughterhouses, and the annual incidence and prevalence of infected herds have experienced a decrease, while the rate of bovine reactors in slaughterhouses has remained stable. Data on the preventive measures taken, such as vaccination of female bovines and Certification of Brucellosis Free Herds, are also shown. The surveillance system has allowed the detection of infected herds, while the measures of prevention and cleaning of infected herds have allowed a reduction in the incidence and prevalence of the infection by Brucella abortus.
本文将回顾始于1996年的智利第十大区洛斯湖大区牛布鲁氏菌病根除进程。该大区是智利最重要的乳制品产区，也是布鲁氏菌病感染畜群最为集中的地区。基于流行病学监测系统收集的信息，呈现了1996年至2001年根除进程的结果，包括乳环状试验（MRT）阳性奶牛场的比例、牲畜市场和屠宰场中布鲁氏菌病反应动物（牛）的比例，以及布鲁氏菌病感染畜群的年发病率和患病率。在此期间，阳性奶牛场的比例、牲畜市场和屠宰场中牛反应动物的比例，以及感染畜群的年发病率和患病率均有所下降，而屠宰场中牛反应动物的比例保持稳定。文中还展示了所采取的预防措施的数据，如母牛接种疫苗和布鲁氏菌病无疫畜群认证。监测系统有助于发现感染畜群，而针对感染畜群的预防和清理措施则降低了流产布鲁氏菌感染的发病率和患病率。
