The Typhidot test mainly helps to detect the IgM and IgG antibodies produced in the presence of the Salmonella Typhi bacteria, and hence, are needed to detect acute typhoid fever. A negative result for the anti-salmonella IgG and IgM antibodies mainly indicates that there is no infection.
But if the test shows a positive result for the IgG antibodies, it indicates that there is an acute infection. But a positive result for the IgM antibodies will indicate any past or chronic infection. Make sure to consult the doctor for proper interpretation of the test results.
Disclaimer: Please consult with your doctor for interpreting the test reports.