SERO-PREVALENCE OF BRUCELLOSIS IN SHEEP, GOATS AND HUMANS

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Date
2012
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
A comprehensive study was conducted to estimate the sero-prevalence of brucellosis in sheep, goats and human beings in and around Jammu, J&K, India. A total of 1930 serum samples, comprising 1085 from sheep, 724 from goats and 121 from humans were collected from different locations of Jammu region and were tested by RBPT, mRBPT, STAT and I-ELISA. The overall sero-prevalence of brucellosis recorded was 6.54, 4.14 and 4.96 per cent in sheep, goats and humans, respectively. In sheep, the test wise seroprevalence was 13.82, 14.38, 16.13 and 23.13 per cent by RBPT, mRBPT, STAT and I- ELISA, respectively. In goats, it was 7.73 per cent by RBPT, 8.29 percent by mRBPT 10.22 per cent by STAT and 12.98 per cent by I-ELISA. In humans, the sero-prevalence was 9.91 percent by RBPT, 9.91 percent by mRBPT, 9.09 per cent by STAT and 16.52 per cent by I-ELlSA. The higher prevalence was seen in sheep and goats of >9yrs-12yrs age group, where as in humans it was higher in >35yrs-50yrs age group. Sexwise seroprevalence was higher in females than males for small ruminants where as it was contrary in humans. Unorganized farms of both sheep and goats were at greater risk as they revealed higher sero-prevalence of brucellosis. Taking I-ELISA as standard, RBPT, mRBPT and STAT revealed similar sensitivity values in sheep while in goats it was in the order of mRBPT>STAT>RBPT while in humans, it was mRBPT=RBPT>STAT. All the tests recorded high specificity values in sheep, goats and humans. Among the serological tests, I-ELISA seems to be better test as it detected maximum number of positive serum samples in both small ruminants as well as humans. Keywords: Brucellosis, Goats, Humans, I-ELISA, RBPT, Sero-prevalence, Sheep, STAT
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