Lesnoff Matthieu, Laval Géraud, Bonnet Pascal, Abdicho Sintayehu, Workalemahu Asseguid, Kifle Daniel, Peyraud Armelle, Lancelot Renaud, Thiaucourt François
Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Campus International de Baillarguet, 34398 Montpellier 5, France.
Prev Vet Med. 2004 Jun 10;64(1):27-40. doi: 10.1016/j.prevetmed.2004.03.005.
Contagious bovine pleuropneumonia (CBPP) is a major threat for cattle health and production in Africa. This disease is caused by the small-colony type of Mycoplasma mycoides subspecies mycoides (MmmSC). Transmission occurs from direct and repeated contacts between sick and healthy animals. Veterinary services recently reported a resurgence of CBPP in the province of West Wellega, in the Ethiopian highlands. A research program was set up to estimate the epidemiological parameters of the within-herd infection spread. A follow-up survey was implemented in 71 sampled herds of the Boji district (West Wellega province). Fifteen herds were classified as newly infected and used in a serological- and clinical-incidence study. The overall 16-month cumulative sero-incidence risk was 34%. Clinical cases were recorded for 39% of the seropositive cattle; case-fatality risk was 13%. There was no evidence of benefit on infection spread of CBPP-control measures used locally by farmers (isolation or antibiotic treatments of sick animals). This might be related to a lack of power in the statistical analyses or to a quality problem for the medications used (and more generally, for health-care delivery in the Boji district).
牛传染性胸膜肺炎（CBPP）是非洲牛健康和生产的主要威胁。这种疾病由丝状支原体丝状亚种小菌落型（MmmSC）引起。传播通过病畜与健康动物之间的直接和反复接触发生。兽医服务部门最近报告称，在埃塞俄比亚高地的西韦莱加省，CBPP疫情有所抬头。为此设立了一个研究项目，以估计畜群内感染传播的流行病学参数。在博吉区（西韦莱加省）的71个抽样畜群中开展了一项跟踪调查。15个畜群被归类为新感染畜群，并用于血清学和临床发病率研究。16个月的总体累计血清发病率风险为34%。39%的血清阳性牛出现了临床病例；病死率风险为13%。没有证据表明农民在当地采取的CBPP控制措施（隔离或对病畜进行抗生素治疗）对感染传播有帮助。这可能与统计分析的效力不足或所用药物的质量问题（更普遍地说，与博吉区的医疗服务质量有关）有关。
