Bovine brucellosis trends in Malaysia between 2000 and 2008

BMC Veterinary Research

Mohamed A Zainal³  Ramlan Bin Mohamad⁴  Siti Khairani-Bejo²  Azri Adzhar¹  Latiffah Hassan²  Mukhtar S Anka² 

[1] Epidemiology and Surveillance Unit, Department of Veterinary Services, Putrajaya, Malaysia;Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia;Department of Agribusiness and Information System, Faculty of Agriculture, Universiti Putra Malaysia, UPM, Serdang 43400, Malaysia;Veterinary Research Institute, 59 Jalan Sultan Azlan Shah, Ipoh, Perak 31400, Malaysia

关键词: Pattern;    Trend;    Distribution;    Bovine brucellosis;    Epidemiology;   

Others  :  1119408
DOI  :  10.1186/1746-6148-9-230

 received in 2013-02-27, accepted in 2013-11-06,  发布年份 2013

【 摘 要 】

Background

Bovine brucellosis is an important disease affecting cattle characterised by abortion, still birth, reduced milk production, weak foetus and infertility in both males and females. There is wide distribution of the disease among cattle and several wildlife species. Bovine brucellosis is commonly caused by B. abortus and very occasionally B. melitensis and B. suis. The distribution of bovine brucellosis in cattle has not been described in Malaysia. In this paper we describe the distribution, pattern and trend of bovine brucellosis in Peninsular Malaysia between 2000 and 2008 based on serological data obtained from nationwide B. abortus serosurveillance activities in cattle populations.

Results

Brucella antibodies were detected in 21.8% of sampled herds (95% CI, 21.01–22.59) and 2.5% (95% CI; 2.45–2.55) of sampled cattle. The state of Pahang had the highest animal and herd-level seroprevalence of 5.3 and 43.6%, respectively. The herd-level seroprevalence varied but remained high (18-26%) over the period of study and generally increased from 2000 to 2008. Seropositive herds clustered around the central part of the peninsula within the period of the study. The months of September, October and November illustrated the highest rates with corresponding seroprevalences of 33.2, 38.4 and 33.9%, respectively. A noticeable variation was observed in the cattle-level seroprevalence, but the rate remained relatively low (<5%). The chi-square statistics showed herd size (χ2 = 1206.077, df = 2, p = 0.001), breed (χ2 = 37.429, df = 1, p = 0.001), month of sampling (χ2 = 51.596, df = 11 p = 0.001), year (χ2 = 40.08, df = 8, p = 0.001) and state (χ2 = 541.038, df = 10, p = 0.001) to be associated with increased seropositivity.

Conclusion

Bovine brucellosis is widespread among herds in Peninsular Malaysia at a low within-herd seroprevalence rate.

【 授权许可】

   
2013 Anka et al.; licensee BioMed Central Ltd.

【 图 表 】

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