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typhoid-diagnosis-in-india-widal-test



  May 09, 2024

Typhoid Diagnosis in India: Widal Test



What is the Widal test?

The Widal test is used to detect antibodies against typhoid-causing bacteria, Salmonella typhi, through a blood sample.

Why is the Widal test problematic?

The test often gives erroneous results due to:

● False positives from reactions with other antibodies or from previous vaccinations.

● False negatives influenced by prior antibiotic use.

● Variability in test kit quality and timing of sample collection.

How does this impact typhoid management in India?

Inaccurate results from the Widal test can lead to misdiagnosis and unnecessary antibiotic use, contributing to antimicrobial resistance (AMR). This complicates India's ability to accurately assess and manage its typhoid burden.

What can improve typhoid diagnosis?

Enhancing typhoid diagnosis in India involves:

● Using more reliable methods like blood cultures.

● Improving public health infrastructure for better sanitation and water quality.

● Implementing better surveillance and diagnostic practices to accurately track and treat typhoid fever.



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