Seroprevalence and Risk Factors of Ovine Pasteurellosis in Asagirt District, Ethiopia

Livestock and Fishery Resource Development, Animal Health Team, Amanuel, Ethiopia

*Corresponding Author: Habtamu Yeneneh Alemu, Livestock and Fishery Resource Development, Animal Health Team, Amanuel, Ethiopia, Phone: +251-920249926, E-mail: [email protected]

Received Date: December 30, 2025

Published Date: March 09, 2026

Citation: Alemu HY. (2026). Seroprevalence and Risk Factors of Ovine Pasteurellosis in Asagirt District, Ethiopia. Mathews J Vet Sci. 10(2):104.

Copyrights: Alemu HY. © (2026).

ABSTRACT

A cross-sectional study was conducted from January 2022 to July 2022 in Asagirt district in North Shoa Zone, Amhara National Regional State of Ethiopia with the objectives of estimating the prevalence of ovine pasteurellosis, identify the associated risk factors, and to determine the dominant serotypes of pasteurella species. A total of 141 sheep sera was collected to identify the prevailing serotypes and parallelly a questionnaire was administering to the sheep owners to collect information on presumed potential risk factors. The serum samples were examined for six serotypes of species of M. haemolytica, B. trehalose and P. multocida using indirect haemagglutination test at National Veterinary Institute, Bishoftu, Ethiopia. An overall seroprevalence of 67.4% was found in this study. Among the serotypes detected M. haemolytica serotype A2 (43.3%) was the most dominant serotype in the study district followed by serotype A7 (41.8 %). The prevalence of the other serotypes T15, PA, T4 and A1 were 26.2%, 24.8%, 21.7% and 7.8% respectively. Among the risk factors flock size, sex, age, lactation and pregnancy status have statistically significant association with seropositivity of ovine pasteurellosis whereas contact with other flocks, different management practice and exposure to other disease were not have significant association in this study. Generally, ovine pasteurellosis is highly prevalent in the study district. Serotype A1, A2, A7, PA, T4 and T15 are the dominant serotypes circulating in the area. Hence, regular vaccination with a polyvalent vaccine incorporated the dominant serotypes identified should be considered.

Keywords: Asagirt District, Ovine Pasteurellosis, Prevalence, Risk Factor, Serotype.