{"id":"widal-typhi-h","name":"Widal, Salmonella Typhi H Titer","shortName":"Widal Typhi H","aliases":["S. Typhi H","Salmonella Typhi H","Typhi H","S. typhi 'H'","Typhoid H","Tifico H","Tífico H","Salmonella typhi H Ab titer","Widal Test Typhi H","Salmonella typhi H antibody","Typhoid H antibody","Typhoid H titer","Widal TH","Salmonella typhi H agglutinin","Typhoid H agglutinins"],"abbreviations":["TH","S. Typhi H"],"loinc":[{"code":"34371-5","primary":true},{"code":"42960-5","primary":false},{"code":"47388-4","primary":false},{"code":"14227-3","primary":false},{"code":"22529-2","primary":false}],"specimen":"serum","units":[],"referenceRanges":[],"review":{"status":"ai-draft","label":"AI-drafted. Awaiting verification","lastReviewed":"2026-10-03"},"summary":"A Widal test titer for the typhoid bacterium's H (flagellar) antigen. It can stay raised after an old infection or a vaccine.","url":"https://bloodtesttracker.com/markers/widal-typhi-h","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}