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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does Salmonella Typhi, H(TH) 320 Indicate?

Hi,



My Widal test (tube method) results are

Salmonella typhi, O(TO)
Salmonella typhi, H(TH) =320 ----Reference
Salmonella paratyphi A,H
Salmonella paratyphi B,H


What is the meaning of the figure 320 in above result please.

Tue, 17 Jun 2014
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Infectious Diseases Specialist,  's  Response
Hello,
Welcome to HCM,

Widal test is a screening test for typhoid fever and it is not a diagnostic test. Titer of Salmonella typhi H 320 suggests that there is a typhoid infection but if there is a rising titer then only it is suggestive of typhoid fever.

Typhoid fever is diagnosed based on the fever for how many days. Widal test is used during the second week of fever.

The typhoid fever is best diagnosed by blood culture, urine culture and stool culture. The rising titres are suggestive of presence of typhoid infection in the body.
Thank you.
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What Does Salmonella Typhi, H(TH) 320 Indicate?

Hello, Welcome to HCM, Widal test is a screening test for typhoid fever and it is not a diagnostic test. Titer of Salmonella typhi H 320 suggests that there is a typhoid infection but if there is a rising titer then only it is suggestive of typhoid fever. Typhoid fever is diagnosed based on the fever for how many days. Widal test is used during the second week of fever. The typhoid fever is best diagnosed by blood culture, urine culture and stool culture. The rising titres are suggestive of presence of typhoid infection in the body. Thank you.