same principle for latex methd
What is false positive in widal test
widal slide is easier and it save time but widal tube test is not easy and it takes time.
I mean widal test result positive after treatment
Isolated Widal test reading does not have much clinical significance. Rising titre of Widal test done one week apart, in a febrile patient, indicates typhoid fever. You can have such rising titre of Widal test in healthy patient, after dose of typhoid vaccine.
1:80 titre is significant for determination of widal positive.
WIDAL
widal test
To a certain extent yes.The post antibiotics Widal Test will have Low titers of agglutinins.Hence the test may be reported as False Negative.
widal test.
manual test of widal method
In Widal test, you measure the antibodies. It takes minimum one week to develop the antibodies of typhoid bacteria.
Widal test is negative in incubatory carrier. Widal test is always positive in chronic carrier.