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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes 1:80 Positive Result In Widal Test?

Hi,
I am Rajkumar, 23 years old 178cm height and 55 kg weight. I had typhoid first time 2 years back and at that time I haven't taken proper antibiotic. Last year again I suffered from typhoid and the widal test result was 1:360 and got treated with proper antibiotic(epinox or efinax i am not sure about that IV medicine) I took it for 5 days (twice a day). I got cured and now after 8 months I got severe back pain and just checked the widal test and the result is 1:80 positive. Why it is still in my blood and often I am getting sick? Please advice.
Fri, 8 Aug 2014
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Pathologist and Microbiologist,  's  Response
Hi,
Thanks for asking.
Based on your clinical history and query, my opinion is as follows:
1. Antibody titre does not fall to zero and will remain at levels below 1:160
2. A level below 1:160 of H or O antigen is always considered negative
3. 1:80 is not a positive Widal test.
4. If you are doubtful, check for rising titres.

Hope it helps.
Any further queries, happy to help again.
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What Causes 1:80 Positive Result In Widal Test?

Hi, Thanks for asking. Based on your clinical history and query, my opinion is as follows: 1. Antibody titre does not fall to zero and will remain at levels below 1:160 2. A level below 1:160 of H or O antigen is always considered negative 3. 1:80 is not a positive Widal test. 4. If you are doubtful, check for rising titres. Hope it helps. Any further queries, happy to help again.