What does Widal Test Positive Means
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Yes typhoid is positive so urgently contact your near any MD General Physician. So that you can have regular follow up. Daily.
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The Widal test is reported by giving the titer for both O and H antibodies. The antibody titer is taken as the highest dilution of serum in which agglutination occurs. The type of agglutination seen with O reactions is granular while that seen with H reactions. Both slide and tube tests are more easily read against a dark background. A Negative test does not necessarily mean the patient is not infected. Reaction occurs in infected patients about 50% during the 1st week, 80% in the 2nd week, 90-95% in the 3rd or 4th week. Positive reactions with O antigen occur earlier in the disease than the reaction with the H antigen. H antigen reactions may remain sometimes for years. A positive reaction occurs after typhoid vaccination and lasts for 1-5 years. In endemic regions, natural agglutinins may be present in the serum. Some persons will not produce antibodies because of other diseases. E.g. A gammaglobinemia (absence of globulin in the serum), Leukemia, and carcinoma (malignant tumor). Taking antibiotics may cause a decrease in the titer. No one titer can be considered diagnostic for typhoid fever. Arise in titer over a period of time is significant and of diagnostic value.
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