Widal Test
A serological test used to diagnose typhoid fever by detecting antibodies to the O and H antigens of Salmonella typhi. This test is commonly used in regions where typhoid fever is endemic.
Widal Test Test in Bengaluru Overview
About The Test
The Widal Test is a serological test used to help diagnose typhoid fever (and paratyphoid fever), which are caused by Salmonella enterica serotypes:
- Salmonella Typhi (causes typhoid)
- Salmonella Paratyphi A, B, and C (cause paratyphoid)
The test detects antibodies (agglutinins) in the patient's blood against the O (somatic) and H (flagellar) antigens of Salmonella.
Why Consider this test ?
If you are experiencing symptoms such as:
- Persistent high fever
- Abdominal pain
- Constipation or diarrhea
- Headache
- Loss of appetite
- Weakness and fatigue
- Sometimes a rash (rose spots) on the abdomen
Who should consider this test ?
1. Patients Who Have Had Fever for More Than 5 Days
2. Individuals Being Monitored for Rising Antibody Titers
People Living in or Returning From Typhoid-Endemic Regions
Typhoid is more common in:
- South Asia (India, Pakistan, Bangladesh)
- Southeast Asia
- Sub-Saharan Africa
- Parts of Latin America
More About this test :
The test detects two main types of antibodies:
|
Antigen Tested |
Antibody Detected |
Indicates |
|
O antigen (somatic) |
Anti-O antibody |
Active infection (early) |
|
H antigen (flagellar) |
Anti-H antibody |
Past infection or immunization |
|
AH antigen |
Anti-Paratyphi A antibody |
Paratyphoid A |
No special preparations needed
- S Typhi O Antigen Titre
- S Typhi H Antigen Titre
- S Paratyphi Ah Antigen
- S Paratyphi Bh Antigen
Test code
9076
Specimen vol. and vacutainer information
| Specimen | Vacutainer | Volume |
|---|---|---|
| Serum | Yellow Vacutainer | .7 ML |
Specimen stability information
Serum
Specimen rejection criteria
Test run frequency
Monday,Tuesday,Wednesday,Thursday,Friday TIME - 05:00
Turn around time
Next Day
Performing locations
Department
- Serology
CPT and Loinc codes
Package price
₹350
Need Help?
Talk to our health experts for guidance on tests, reports, or bookings.
WhatsApp to Book TestWidal Test
₹350