SERO-PREVALENCE OF BOVINE BRUCELLOSIS IN WEST BENGAL, INDIA: A 15 - YEARS STUDY

Exploratory Animal and Medical Research

卷:8

Joyjit Mitra¹  Sumit Chowdhury¹  Amaresh Chatterjee²  Basudeb Maity³ 

[1] Assistant Director, ARD,Institute of Animal Health & Veterinary Biologicals, 37, Belgachia Road, Kolkata, West Bengal, India.;

[2] Ex-Director, Animal Husbandry & Veterinary Services, West Bengal, India.;

[3] Joint Director, ARD,Institute of Animal Health & Veterinary Biologicals, 37, Belgachia Road, Kolkata, West Bengal, India.;

关键词: Brucellosis;    Cattle;    Sero-prevalence;    RBPT;    iELISA;    West Bengal;   

DOI  :  

来源: DOAJ

【 摘 要 】

Bovine brucellosis is an important zoonotic disease caused by Brucella abortus. The distribution of bovinebrucellosis in West Bengal has not been reported so far. Here, a longitudinal epidemiological study was conducted fromApril 2002 to March 2016 to determine the distribution, pattern and trend of bovine brucellosis in different organizedand unorganized farms of West Bengal, India. Bovine serum samples were examined for identification of brucellosis byRose Bengal Plate Test and indirect ELISA. Results envisaged that the prevalence of brucellosis is 11.12 times higher inorganized farm (average 6.6%) compared to rural areas (average 0.6%) with overall prevalence was 3.9%. The highestand lowest level of sero-positivity was observed in 2015 and 2011 with 9.8% and 0.5% respectively. In reference to theyear 2002, trend of brucellosis was decreasing up to 2013 in a fluctuating manner (odd ratio ranging from 1.7 to 2.3);however, it again increased in 2014 and 2015 with final decrease in 2016. In organized farms, highest (12.6%) and lowest(0.6%) level of prevalence was recorded in 2015 and 2011 respectively. In rural areas, the highest and lowest level ofprevalence was observed in 2010 and 2008 with 1.8% and 0.15% respectively. Chi square statistics revealed that locationof cattle (χ2 =713.8, df=1, p<0.001) and year of sample collection (χ2 = 468.6, df=14, p<0.001) contributed significantly toincreasing or decreasing sero-positivity. A univariate logistic regression analysis also revealed that location of the animalseither in organized farm or in rural areas and year(s) of sampling have statistically significant (p<0.001) effect on individualanimal level sero-positivity. The results suggested that brucellosis is endemic and moderately distributed in differentregions of West Bengal including Burdwan, Nadia, Paschim Medinipur, Murshidabad and Hoogly districts.

【 授权许可】

Unknown