Widal test is an agglutination test which detects the presence of serum agglutinins h and o in patients serum with typhoid and paratyphoid fever. Significa paciente con infeccion actual, reciente o pasada. All structured data from the file and property namespaces is available under the creative commons cc0 license. The file contains 6 pages and is free to view, download or print. It offers mass conversion and allows files up to 50 mb. Scribd is the worlds largest social reading and publishing site. Pdf widal reaction and phenotypes in children with. A comparative study of widal test with blood culture in the. Niurka 1labanino mulet, susana victoria rodriguez melendez 2 1. Sep 17, 2014 a similar study conducted in egypt indicates that a negative result of widal test would have a good predictive value of the disease npv 98% but positive result would have a very low predictive value for typhoid fever ppv 5. The antibodies develop at the end of the first week and the titres rise during 2 nd, 3 rd and 4 th week, after which they slowly decrease.
Hence a widal test performed early in the first week may give negative results. Widal test interpretation, normal values, procedure. Microbiologiapatogenesisepidemiologiaclinicaydiagn3297749. Reacciones febriles carrillo uribe daniel gilberto 2. A single widal test is not sufficient for correct results and at least two tests should be conducted.
1092 1333 971 660 260 677 552 1548 1428 325 306 956 1090 1007 1534 972 259 579 928 21 718 33 690 928 1212 154 1416 950 972