isolation & characterization of brucella melitensis isolated from patients suspected for human brucellosis in india

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ID: 172265
2016
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Abstract
Background & objectives: Brucellosis is endemic in the southern part of India. A combination of biochemical, serological and molecular methods is required for identification and biotyping of Brucella. The present study describes the isolation and biochemical, molecular characterization of Brucella melitensis from patients suspected for human brucellosis. Methods: The blood samples were collected from febrile patients suspected to have brucellosis. A total of 18 isolates were obtained from 102 blood samples subjected to culture. The characterization of these 18 isolates was done by growth on Brucella specific medium, biochemical reactions, CO2 requirement, H2S production, agglutination with A and M mono-specific antiserum, dye sensitivity to basic fuchsin and thionin. Further, molecular characterization of the isolates was done by amplification of B. melitensis species specific IS 711 repetitive DNA fragment and 16S (rRNA) sequence analysis. PCR-restriction fragment length polymorphism (RFLP) analysis of omp2 locus and IS711 gene was also done for molecular characterization. Results: All 102 suspected samples were subjected to bacteria isolation and of these, 18 isolates could be recovered on blood culture. The biochemical, PCR and PCR-RFLP and 16s rRNA sequencing revealed that all isolates were of B. melitensis and matched exactly with reference strain B. melitensis 16M. Interpretation & conclusions: The present study showed an overall isolation rate of 17.64 per cent for B. melitensis. There is a need to establish facilities for isolation and characterization of Brucella species for effective clinical management of the disease among patients as well as surveillance and control of infection in domestic animals. Further studies are needed from different geographical areas of the country with different level of endemicity to plan and execute control strategies against human brucellosis.
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barua2016indianisolation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Anita Barua;Ashu Kumar;Duraipandian Thavaselvam;Smita Mangalgi;Archana Prakash;Sapana Tiwari;Sonia Arora;Kannusamy Sathyaseelan
Journal international journal of radiation biology
Year 2016
DOI
10.4103/0971-5916.187115
URL
http://www.ijmr.org.in/article.asp?issn=0971-5916;year=2016;volume=143;issue=5;spage=652;epage=658;aulast=Barua
Keywords
brucellosis - brucella melitensis - pcr - pcr-rflp - sequencingmedicine

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