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Indirect enzyme Linked immunosorbent assay for the diagnosis of brucellosis in cattle
( Md. Siddiqur Rahman ),( Md. Fazlul Huque ),( Md. Shamim Ahasan ),( Hee Jong Song ) 한국가축위생학회 2010 韓國家畜衛生學會誌 Vol.33 No.2
Brucellosis is a major zoonosis caused by Gram negative facultative intracellular bacterial organisms of the genus Brucella that are pathogenic for a wide variety of animals and human beings. Because of its economic impact on animal health and the risk to the human population,most countries have a brucellosis control program. Brucellosis is also an economically important andprevalent disease in Bangladesh. The accurate and prompt diagnosis is very important in controlling and eradicating of the disease in animals. The present study was undertaken to determine the seroprevalence of brucellosis in cattle in Mymensingh and Patuakhali district of Bangladesh. A total of 120 serum samples were collected from the two districts along with a questionnaire related to the epidemiology of the disease. The sampleswere screened by using slow agglutination test and conformed by indirect enzyme linked immunosorbent assay. The overall seroprevalence of brucellosis in cattle was 5% and it was observed that, a higher prevalence of Brucella was found in female than male, through natural breeding than artificial insemination (AI) and animal above 4 years old are highly susceptible than younger ones. Higher prevalence was found in aborted animals in comparison with non aborted animal. Finally, the study revealed that the female animal has more susceptible to brucellosis and healthy semen should be used for AI.
( Md. Shamim Ahasan ),( Md. Siddiqur Rahman ),( Hee Jong Song ) 한국가축위생학회 2010 韓國家畜衛生學會誌 Vol.33 No.2
Brucellosis is a serious zoonosis, recognized worldwide. It primarily affects animals, which act as reservoirs for human infection as well as being of economic significance to the agri-food industry. Bangladesh has been reported as an endemic area for brucellosis. So a cross sectional study was conducted to determine the seroprevalence and potential risk factors of brucellosis in cattle in Dinajpur and Mymensingh districts of Bangladesh. A total of 182 cattle were examined by Rose Bengal Plate Test (RBPT) between September 2008 and October 2009. Then Positive, doubtful, and negative samples were further confirmed with slow agglutination test (SAT) and both indirect and competitive enzyme linked immunosorbent assay (iELISA and cELISA). A questionnaire was used to collect epidemiological information of the animals. The overall animal-level prevalence was 3.30%. Brucellosis seroprevalence was higher (4.76% by cELISA) in cattle above 48 months than those under 48 months. Female showed higher seroprevalence (10.67%) than male (6.25%). Higher seroprevalence was also found in cattle bred naturally (20.0%) than artificially (8.77%) and cattle that aborted or with previous abortion record (22.22%) showed higher seroprevalence than non-aborted (7.69%). The sensitivity of RBT and SAT was found 100% as compared to cELISA standard test, whereas specificity of RBT (95.35%) was higher than that of SAT (94.32%).
Brucellosis in sheep and goat of Bogra and Mymensingh districts of Bangladesh
Rahman, Md. Siddiqur,Hahsin, Md. Ferdous Ali,Ahasan, Md. Shamim,Her, Moon,Kim, Jeong Yeong,Kang, Sang Il,Jung, Suk Chan The Korean Society of Veterinary Science 2011 大韓獸醫學會誌 Vol.51 No.4
Brucellosis is the most important bacterial disease of livestock in Bangladesh. The present study was conducted to determine the seroprevalence of brucellosis in goat and sheep in Mymensingh and Bogra districts of Bangladesh using slow agglutination test and Rose Bengal test as screening test and indirect enzyme linked immunosorbent assay as confirmatory test. Questionnaire based data on age, gender, area, client's complaint, number of animals in herds, disease history, reproductive problems such as abnormal uterine discharge, abortion or previous abortion in sheep and goat and their reproductive diseases were recorded. A total of 200 sera samples were collected from 80 sheep and 120 goats. The prevalence of brucellosis in goat was 2.50% and 1.25% in sheep. Positive reactors were only detected in female of both goat and sheep. In this study, there existed a significant association among abortion and the prevalence of brucellosis (p < 0.01). The prevalence of brucellosis in sheep and goat in Bangladesh is not negligible, and it is therefore worth considering the adoption of preventive measures.
( Md Siddiqur Rahman ),( Nur Alam ),( AKM Anisur Rahman ),( AKM Fazlul Huque ),( Md Shamim Ahasan ),( Hee Jong Song ) 한국가축위생학회 2009 韓國家畜衛生學會誌 Vol.32 No.3
A cross sectional survey was conducted to determine the seroprevalence of brucellosis in cattle in Bangladesh Agricultural University (BAU) Veterinary Clinics, in BAU Dairy Farm and Vabokhali from June 2008 to November 2008. A total of 200 sera samples were collected from BAU Veterinary Clinic, from BAU Dairy Farm and Vabokhali. Among the sera samples 143 sera samples were collected from BAU Veterinary Clinic, 42 sera samples from BAU Dairy Farm and 15 sera samples from Vabokhali. Sera were separated from blood samples and tested with specific Brucella abortus antigen (BAA) test and B. melitensis antigen (BMA) test. The overall seroprevalence of brucellosis in cattle was found in cattle is 5% in BAA and 0.5% in BMA. It is observed that, a significant higher prevalence of B. abortus was found in female than male. An insignificant higher prevalence of brucellosis was found in adult cattle (aged above 5 years), in cross breed cattle, in cattle with grazing, cattle breed by natural breeding, in pregnant cows. Although insignificant but a higher prevalence of brucellosis was found in aged cattle than young, cross bred cattle, pregnant cattle than non pregnant cattle, cattle with grazing. A higher prevalence of brucellosis was found in female cattle than male.
( Md. Siddiqur Rahman ),( Nusrat Jahan ),( Mohammad Arif Hossain ),( M. J. Uddin ),( Niraj Kanti Shil ),( KBM Saiful Islam ),( Md. Shamim Ahasan ),( A. K. M. Anisur Rahman ),( Hee Jong Song ) 한국가축위생학회 2008 韓國家畜衛生學會誌 Vol.31 No.4
Brucella spp. are small, non-motile Gram-negative coccobacilli known to cause disease in a number of vertebrate species including humans and brucellosis is one of the world`s major zoonoses, alongside bovine tuberculosis and rabies. There are about 33.55 million goats and 1.16 million sheep in Bangladesh. The sheep and goats can significantly play an important role in the economic well being of the resource-poor farmer in Bangladesh. Sexually matured 362 female small ruminants (300 goats and 62 sheep) were examined. Approximately 3-5ml of blood was collected from the jugular vein of each animal and sera samples were prepared. Samples were then tested for brucellosis by using Rose Bengal test(RBT), plate agglutination test(PAT) and tube agglutination test(TAT). Among 362 small ruminants, irrespective of species(sheep or goat), diagnosed highest in TAT, 2.21%(n=8) and lowest both by RBT & PAT, 1.93%(n=7) and it is concluded that TAT is superior than RBT and PAT.
Rahman, Md. Siddiqur,Alam, Nur,Rahman, A.K.M. Anisur,Huque, A.K.M. Fazlul,Ahasan, Md. Shamim,Song, Hee-Jong The Korean Society of Veterinary Service 2009 韓國家畜衛生學會誌 Vol.32 No.3
A cross sectional survey was conducted to determine the seroprevalence of brucellosis in cattle in Bangladesh Agricultural University (BAU) Veterinary Clinics, in BAU Dairy Farm and Vabokhali from June 2008 to November 2008. A total of 200 serum samples were collected from BAU Veterinary Clinic, from BAU Dairy Farm and Vabokhali. Among the serum samples 143 sera samples were collected from BAU Veterinary Clinic, 42 serum samples from BAU Dairy Farm and 15 serum samples from Vabokhali. Sera were separated from blood samples and tested with specific Brucella abortus antigen (BAA) test and B. melitensis antigen (BMA) test. The overall seroprevalence of brucellosis in cattle was 5% in BAA and 0.5% in BMA. It was observed that, a significant higher prevalence of B. abortus was found in female than male. An insignificant higher prevalence of brucellosis was found in adult cattle (aged above 5 years), in cross breed cattle, in cattle with grazing, cattle breed by natural breeding, and in pregnant cows. Although insignificant but a higher prevalence of brucellosis was found in aged cattle than young cattle, cross bred cattle, pregnant cattle than non pregnant cattle, cattle with grazing. A higher prevalence of brucellosis was found in female cattle than male.
Rahman, Md. Siddiqur,Jahan, Nusrat,Hossain, Mohammad Arif,Uddin, M.J.,Shil, Niraj Kanti,Islam, KBM Saiful,Ahasan, Md. Shamim,Rahman, A.K.M. Anisur,Song, Hee-Jong The Korean Society of Veterinary Service 2008 韓國家畜衛生學會誌 Vol.31 No.4
Brucella spp. are small, non-motile Gram-negative coccobacilli known to cause disease in a number of vertebrate species including humans and brucellosis is one of the world's major zoonoses, alongside bovine tuberculosis and rabies. There are about 33.55 million goats and 1.16 million sheep in Bangladesh. The sheep and goats can significantly play an important role in the economic well being of the resource-poor farmer in Bangladesh. Sexually matured 362 female small ruminants(300 goats and 62 sheep) were examined. Approximately 3-5 ml of blood was collected from the jugular vein of each animal and sera samples were prepared. Samples were then tested for brucellosis by using Rose Bengal test(RBT), plate agglutination test(PAT) and tube agglutination test(TAT). Among 362 small ruminants, irrespective of species(sheep or goat), diagnosed highest in TAT, 2.21%(n=8) and lowest both by RBT & PAT, 1.93%(n=7) and it is concluded that TAT is superior than RBT and PAT.