Prediction of Bovine Brucellosis from Occupationally Exposed Human Brucellosis Cases in Ludhiana, Punjab
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Date
2016
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Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana
Abstract
The current study was conducted to determine whether veterinary personnel could be used as sentinels for bovine brucellosis. Blood samples were collected from 279 veterinary personnel working in district Ludhiana and tested using Rose Bengal plate test, standard tube agglutination test, and both IgG and IgM ELISA. Information about participant demographics, disease perception and control practices was collected using a self-completed questionnaire. Of all the participants, 61 (21.9%), 67 (24.0%), 55 (19.7%) and 150 (53.8%) were positive in RBPT, STAT, IgM and IgG ELISA test, respectively. Based on prevalence of brucellosis in veterinary professionals, SaTScan analyses were conducted to identify spatial clusters with high and low prevalence of IgG and IgM human Brucella antibodies. A total of 15 villages representing different spatial clusters were selected and a total of 533 bovine milk samples were collected. Additionally, 334 bovine milk samples from nine villages were also collected to estimate the prevalence of bovine brucellosis from all the sub-districts in district Ludhiana. Overall, 847 milk samples were collected to estimate Milk Ring Test (MRT) and milk ELISA based prevalence of bovine brucellosis. Herd prevalence of bovine brucellosis came out to be 15.0% using Milk ring test (MRT) and 20.5% using Milk I-ELISA. Logistic regression and chi-square analysis for bovine brucellosis was done in 533 milk samples to compare prevalence of bovine brucellosis in high and low human brucellosis prevalence clusters. It was found that MRT based prevalence of bovine brucellosis is significantly associated with low and high human brucellosis prevalence clusters.
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