Understand what a positive Widal test means, its normal range, and how it helps diagnose typhoid fever. Learn about the test procedure, interpretation, and its role in effective treatment and prevention. A positive Widal test means Salmonella Typhi antibodies are present in the blood which is an indication of active typhoid. And if the test results are negative it means there is no active infection. Widal Test Positive Report: When a Widal test report is positive, it shows elevated antibody titers, typically at or above 1:160. This suggests that the body is actively responding to the infection. Discover the normal range for typhoid tests. Learn how abnormal results can indicate an infection and the importance of prompt medical attention.