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Dr. Andrew Rynne
Dr. Andrew Rynne

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What does my Widal test report indicate?

Answered by
Dr. Tushar Kanti Biswas

Internal Medicine Specialist

Practicing since :1975

Answered : 1909 Questions

Posted on Wed, 6 Apr 2016 in Infections
Question: Widal Test Report
Salmonella Typhi O (TO) Non Reactive
Salmonella Typhi H (TH) Reactive UPto Titre 1:40
Salmonella Paratyphi A, H (AH) Non Reactive
Salmonella Paratyphi B, H (AH) Non Reactive

It is Typhoid Positive

Answered by Dr. Tushar Kanti Biswas 38 minutes later
Brief Answer:
Your Widal Test report is not considered Positive for typhoid fever

Detailed Answer:

Thank you for your query. I can understand your concerns.

Widal Test is not a reliable test for typhoid fever,because of false positivity.

However a four fold rising titre (e.g., from 1:40 to 1:160) in the course of the infection, is considered positive for typhoid fever.

The Widal test is also considered positive if TO antigen titer is more than 1:160 in an active infection, or if TH antigen titer is more than 1:160 in past infection or in immunized persons.

Your test report does not meet any of these figures.

Your Widal report hence is not considered positive for typhoid fever.


Dr. T.K. Biswas M.D. XXXXXXX

Above answer was peer-reviewed by : Dr. Arnab Banerjee
Follow up: Dr. Tushar Kanti Biswas 11 hours later
Thanks Sir, I am really relaxed from this side.....
Answered by Dr. Tushar Kanti Biswas 1 hour later
Brief Answer:
Widal Test report

Detailed Answer:
You are most welcome.


Dr. T.K. Biswas M.D. XXXXXXX
Above answer was peer-reviewed by : Dr. Sonia Raina

The User accepted the expert's answer

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