Seroprevalence of zoonotic abortive diseases and their associated risk factors in Tunisian sheep

BMC Veterinary Research

Research

Lilia Messadi¹  Aymen Mamlouk¹  Kaouther Guesmi²  Sana Kalthoum²  Mohamed Naceur Baccar²  Jamel Cherni²  Haikel Hajlaoui²  Bassem BelHajMohamed²  Chédia Seghaier²  Aymen Toumi³ 

[1] Department of Microbiology and Immunology, Institution of Agricultural Research and Higher Education, National School of Veterinary Medicine, Univ. Manouba, 2020, Sidi Thabet, Tunisia;National Center for Zoosanitary Vigilance, Ministry of Agriculture, Water Resources and Fisheries, 38 Avenue Charles Nicolle, 1082, Tunis, Tunisia;State-owned Land Office, Ministry of Agriculture, Water Resources and Fisheries, Tunis, Tunisia;

关键词: Abortion;    Seroprevalence;    ELISA;    Brucella spp;    Coxiella burnetii;    Toxoplasma gondii;    Sheep;    Risk factors;    Tunisia;   

DOI  :  10.1186/s12917-022-03541-9

 received in 2022-04-20, accepted in 2022-12-05,  发布年份 2022

来源: Springer

【 摘 要 】

BackgroundAbortion is a serious problem for sheep flocks and it is responsible for considerable economic losses. The epidemiological situation of abortion causing agents in sheep is poorly documented in Tunisia. This study aims to investigate the status of three abortion causing agents (Brucella spp, Toxoplasma gondii, and Coxiella burnetii) among organized flocks in Tunisia.ResultsA total of 793 sample blood collected from twenty-six flocks in seven governorates in Tunisia, were tested by indirect enzyme-linked immunosorbent assay (i-ELISA) for antibodies against three abortion causing agents (Brucella spp, Toxoplasma gondii, and Coxiella burnetii). Risk factors for individual-level seroprevalence were analyzed using a logistic regression model. Results revealed that 19.7%, 17.2%, and 16.1% of the tested sera were positive for toxoplasmosis, Q fever, and brucellosis, respectively. Mixed infection was found in all the flocks with 3 to 5 responsible abortive agents simultaneously.Logistic regression showed that the management practices (control of new introduction, common grazing and watering point, workers exchange, presence of lambing box on the farm) and the history of infertility and the presence of abortion in neighboring flocks were likely to increase the probability of being infected by the three abortive agents.ConclusionsEvidence of the positive relationship between seroprevalence of abortion causing agents and several risk factors, suggests further investigations to better understand the etiology of infectious abortions in flocks to develop an applicable preventive and control program.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

Fig. 3