What is Widal Test ????? The Widal test is one method that may be used to help make a presumptive diagnosis of enteric fever, also known as typhoid fever. What is the normal range of widal test? The diagnostic value of the Widal test was assessed in an endemic area. The test was done on 300 normal individuals, 297 non-typhoidal fevers and 275 bacteriologically proven cases of typhoid. Of 300 normal individuals, 2% had an H agglutinin titre of 1/160 and 5% had an O agglutinin titre of 1/160. What is O and H in widal test? Widal agglutination was introduced as a serologic technique to aid in diagnosis of typhoid fever. The test was based on demonstrating the presence of agglutinin (antibody) in the serum of an infected patient, against the H (flagellar) and O (somatic) antigens ofSalmonella typhi. What is the meaning of widal test positive? The Widal test is positive if TO antigen titer is more than 1:160 in an active infection, or if TH antigen titer is more than 1:160 in past infection or in immunized persons. A single Widal test is of little clinical relevance due to the high number of cross-reacting infections, including malaria. How do I know my widal test is positive? The Widal test is positive if TO antigen titer is more than 1:160 in an active infection, or if TH antigen titer is more than 1:160 in past infection or in immunized persons. A single Widal test is of little clinical relevance due to the high number of cross-reacting infections, including malaria. "Glovision Diagnostics" We are providing all Diagnostic Facilities in our center.... We have Ultramodern Songraphy Facility We have 2 D Echo Facility We have Doppler Facility We are doing All Pathology Tests We have Digital X-ray We have ECG facility Visit us @ "diagnosticcentrepune.in"