Abstract:
Salmonellae are important pathogens affecting humans health,
remaining a major global health problem. The aim of this study
was to compare between the Widal test and Onsite Typhoid
IgG/IgM2.0 –Rapid test for the diagnosis of Salmonella typhi.
A total of 150 blood specimens were collected from suspected
patients
with
enteric
fever
attending
Omdurman
Teaching
Hospital during March to May 2012.
The samples were serologically tested using the Widal test (tube
and slide methods) in comparison with the Onsite Typhoid
IgG/IgM2.0 –Rapid test, the slide and tube method were used to
screen for antibodies of Salmonella typhi and to evaluate the
amount of antibody titer in each specimen.
The results revealed that the tube test was superior in detection
of enteric fever than Onsite Typhoid
IgG/IgM 2.0 –Rapid test in
diagnosing chronic infection. Where as the Onsite Typhoid
IgG/IgM2.0 –Rapid test is better than the tube method for diagnosis
of acute enteric fever, yet it detected more false positives.
The study conducted that the Widal test (tube method), was
superior than slide method and Onsite Typhoid IgG/IgM 2.0 –Rapid
test for detection of chronic enteric fever cases. Further research
is warranted to compare the two methods with the gold standard
culture method to dectect infection with Salmonella typhi.
