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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does This Widal Test Results Indicate?

Hi, My widal test was positive last week. Styphi o -1/30,1/60 and 1/120 was positive and 1/240,1/480 was -ve. Styphi h-1/30,1/60,1/120,1/240 was +ve and 1/480 was-ve. Spara typhi A 1/30 was +ve nd other are -ve. Same with spara typhi B 1/30 was +ve. Pls make me understand wherther its O. Or something is serious. Thanks.
posted on Thu, 5 Jun 2014
Twitter Tue, 24 Jun 2014 Answered on
Twitter Wed, 25 Jun 2014 Last reviewed on
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Pathologist and Microbiologist,  's  Response
Hi,
Widal test is a serological test to look for antibody in case of typhoid fever.
The numbers 1/30 or 1/120 indicates the dilution titre strength at which is positive. A titre of more than 1/160 with symptoms of either 'O' or 'H' indicates positivity. Previous infections or vaccinations needs to be ruled out.
Additionally a single widal test does not confirm the diagnosis. A rising titre eg. 1/120 to 1/480 usually indicates an active infection
Its nothing serious. If you are on antibiotics, do get a follow up widal test done, if fever continues. If it is raising its typhoid fever. Also stool and urine culture can also be done, as required.
Any further queries, happy to help again.
Dr. Jyothi BL
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What Does This Widal Test Results Indicate?

Hi, Widal test is a serological test to look for antibody in case of typhoid fever. The numbers 1/30 or 1/120 indicates the dilution titre strength at which is positive. A titre of more than 1/160 with symptoms of either O or H indicates positivity. Previous infections or vaccinations needs to be ruled out. Additionally a single widal test does not confirm the diagnosis. A rising titre eg. 1/120 to 1/480 usually indicates an active infection Its nothing serious. If you are on antibiotics, do get a follow up widal test done, if fever continues. If it is raising its typhoid fever. Also stool and urine culture can also be done, as required. Any further queries, happy to help again. Dr. Jyothi BL