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Year : 2014  |  Volume : 41  |  Issue : 2  |  Page : 114-117

A comparative clinical study of efficacy of microimmuno assay with WIDAL-test in enteric fever in children

1 Department of Pediatrics, and Microbiology, KIMS Hospital, Bengaluru, India
2 Department of Microbiology, KIMS Hospital, Bengaluru, Karnataka, India
3 Biostatistician, National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Bengaluru, Karnataka, India

Correspondence Address:
Gandarajapura Nagaraj Madhu
#15, "Manjushri", 1st Cross, 1st Main, Sundarnagar, Gokula, Bengaluru - 560 054, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0974-5009.132856

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The diagnosis of typhoid fever in young children is also a dilemma because of its manifestations and typical presentation may not be seen in all cases. Antibodies to Salmonella typhi antigen are developed in the human body, which can be detected as a diagnostic test for the enteric fever. Objective: This study was undertaken to compare the efficacy of WIDAL-test with micro-immunoassay (dot enzyme immunosorbent assay). Method: 40 cases of clinically suspected enteric fever cases were included in this study. Result: In the present study, nearly 92% were positive for micro immunoassay (dot-enzyme immunosorbent assay) by Enterocheck-WB kit, 80% were positive for WIDAL and only 15% were culture positive. Immunoassay positive, but WIDAL negative cases were 20%, whereas WIDAL positive and immunoassay negative cases were only 7.5%. The positive predictivity of micro-immunoassay in diagnosing enteric fever is better than WIDAL both in 1st and 2nd week of illness. Micro-immunoassay done in the study was rapid in diagnosing the case. Conclusion: It is concluded from the present study that the micro-immunoassay (Enterocheck-WB) is better than WIDAL-test in the diagnosis of enteric fever in children.

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