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Widal Test Done For S Typhi O, H Non Reactive, S Para Typhi Ah And Bh. Any Suggestion?
Question: Girl Aged 22
S Typhi O: 1:80,
"H": Non Reactive < 1:20,
S Para Typhi AH & BH: Non Reactive Lessthan 1:20
S Typhi O: 1:80,
"H": Non Reactive < 1:20,
S Para Typhi AH & BH: Non Reactive Lessthan 1:20
Hello,
Thank you for posting a query.
Look, widal test only detects somatic O and flagellar H antibodies present in blood.
But, the level is dependent on the area where the patient lives. If the area is endemic for typhoid, then the antibodies may present in higher amount than normal. Some other factors also influence the result.
As per the standard ranges given by the laboratory, she is reactive for typhoid O antibodies. But, we clinically take >1:160 as a significant value.
So, in this condition, you should consult with her treating doctor for clinical correlation. If clinically there is any suspicion, I think it would be better to go for specific IgM and IgG test for typhoid. It is newer, more specific and more reliable than Widal test.
So, consult with her treating doctor regarding the points I have told you.
Hope this information suffices. Let me know, if you have any more question.
Regards.
Thank you for posting a query.
Look, widal test only detects somatic O and flagellar H antibodies present in blood.
But, the level is dependent on the area where the patient lives. If the area is endemic for typhoid, then the antibodies may present in higher amount than normal. Some other factors also influence the result.
As per the standard ranges given by the laboratory, she is reactive for typhoid O antibodies. But, we clinically take >1:160 as a significant value.
So, in this condition, you should consult with her treating doctor for clinical correlation. If clinically there is any suspicion, I think it would be better to go for specific IgM and IgG test for typhoid. It is newer, more specific and more reliable than Widal test.
So, consult with her treating doctor regarding the points I have told you.
Hope this information suffices. Let me know, if you have any more question.
Regards.
Above answer was peer-reviewed by :
Dr. Chakravarthy Mazumdar
Answered by
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