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What Are The Findings From The Widal Test?

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Posted on Fri, 10 Jan 2014
Question: Salmonella typhi 'o' value 1/50dilns and 'h' value 1/50 diln. Para typhi 'ah' and 'bh' are negative. Kindly interpret the results. Kid of age 5 years.
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Answered by Dr. Arun (42 minutes later)
Brief Answer: Negative widal Detailed Answer: Hi Thanks for writing to healthcare magic. Upto 1:320 is negative. But depends on the time of test. If done early , say in the first week of fever even 1: 50 needs recheck after a week to see if it rises. To confirm or rule out typhoid better tests are available like blood culture and typhidot . Regards Dr Arun
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. Arun

Pediatrician, Pulmonology

Practicing since :2003

Answered : 1964 Questions

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What Are The Findings From The Widal Test?

Brief Answer: Negative widal Detailed Answer: Hi Thanks for writing to healthcare magic. Upto 1:320 is negative. But depends on the time of test. If done early , say in the first week of fever even 1: 50 needs recheck after a week to see if it rises. To confirm or rule out typhoid better tests are available like blood culture and typhidot . Regards Dr Arun