Immunology & Serology · Report Format
Widal Test Report Format — Sample & Free Download
A Widal test is a slide agglutination test that detects antibodies against Salmonella Typhi and Paratyphi organisms in the blood, used to support a diagnosis of typhoid or paratyphoid fever. Results are read as a titre — the highest serum dilution at which agglutination (clumping) is still visible — across a row of antigens (Typhi O, Typhi H, Paratyphi A, Paratyphi B).
This is a real report generated by Dr.Lably LIS — not a mockup.
When is it ordered?
- Investigating prolonged fever suggestive of typhoid or paratyphoid fever
- Supporting a clinical typhoid diagnosis alongside symptoms and history
- Follow-up testing in areas where typhoid is common
- Screening when blood culture isn't readily available
Test details
- Specimen type
- Serum
- Turnaround time
- Same day (6 hours)
Widal Test report format breakdown
| Parameter | Unit | Normal range | What it means |
|---|---|---|---|
| Salmonella Typhi O | Titre | Up to 1:80 | A rising or single high titre above the local baseline supports active or recent typhoid infection; a single reading needs correlation with symptoms and, ideally, a paired sample. |
| Salmonella Typhi H | Titre | Up to 1:80 | The H antigen titre often stays elevated longer than O, including after past infection or TAB vaccination, so it's interpreted alongside the O titre rather than alone. |
| Salmonella Paratyphi A | Titre | Up to 1:80 | Elevated titres suggest possible paratyphoid A infection, though cross-reactions with other Salmonella antigens can occur. |
| Salmonella Paratyphi B | Titre | Up to 1:80 | Elevated titres suggest possible paratyphoid B infection; as with the other antigens, results are interpreted alongside clinical presentation. |
Frequently asked questions
What does a Widal test report format look like?
A Dr.Lably Widal report shows a grid with each Salmonella antigen (Typhi O, Typhi H, Paratyphi A, Paratyphi B) as a row and dilution titres (1:20 through 1:1280) as columns, marking where agglutination is positive, plus an overall Positive/Negative result — as shown in the sample above.
Does a Widal test require fasting?
No. A Widal test doesn't require fasting and can be drawn at any time.
What titre is considered significant?
Significance varies by region and lab, since baseline titres differ in typhoid-endemic areas — a single low titre (commonly up to 1:80) is often non-significant, while a high or rising titre on a repeat sample is more suggestive of active infection. A doctor should interpret the result against the local baseline.
How long does a Widal report take?
Dr.Lably-powered labs typically report Widal results the same day, often within about 6 hours of sample collection.
Related report formats
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Dr.Lably LIS generates this exact report format automatically for every widal test — with your lab's branding, QR verification, and WhatsApp/email delivery built in.
This page is for informational purposes only and is not a substitute for professional medical advice or diagnosis. Reference ranges shown are illustrative and may vary by lab, analyzer, age, gender, and methodology — always interpret results with a qualified physician.