Within-herd spread and clinical observations of contagious bovine pieuropneumonia in Ethiopian Highlands (Boji district, West Weiiega): methodology and epidemioEogical results

摘要

Contagious bovine pieuropneumonia (CBPP) is a disease caused by the small-colony type of Mycoplasma mycoides subspecies mycoides (Masiga and Domenech, 1995). Transmission occurs from direct and repeated contacts between sick and healthy animals. It isa major threat for cattle health and production in Africa, where it was reported from 17 countries in 2001 (OIE, 2002). Few field data, however, were reported in the literature on within-herd spread of CBPP during outbreaks. A research programme was setup in a CBPP-infected zone in Ethiopian highlands (Boji district in West Wellega Zone) to estimate the epidemiological parameters of the disease and to assess the effects of different disease management strategies naturally implemented by the local farmers.