Prevalence of Positive Widal Test among Healthy Personnel in Kerbala
Kerbala Journal of Medicine,
Volume 8, Issue 2, Pages 2265-2271
Abstractbackground: Typhoid and paratyphoid fever is still an existing health problem in many developing countries. Widal test is almost the most widely used method for diagnosis of typhoid fever in many developing countries including Iraq, though it is nonspecific with many drawbacks on its use.
Objectives: To estimate the prevalence of Widal test positivity in sera of healthy young personnel in Kerbala city.
Methods: A cross sectional study conducted in Karbala city, Blood samples from 107 healthy young adults aged 18-40 years old collected, whom are free of sign and symptoms, and not having significant ill health within last two months or typhoid fever within last six months.
Results and Discussion: males composed 48.6% of the sample, their mean age was 22.8 ± 3.66 years, and 51.4% of them had a titer of 1/80 for S.typhi O antibody, while other ABs titers were 44.9%, 47%, and 44.9% for S typhi H, S. paratyphi BO and S. paratyphi BH respectively. On other hand ABs titers ≥ 1/160 (positive) were found in 42.1 % for S. typhi O, while others were 28%, 23.4%, 20.6% for S. paratyphi BO, S. typhi H and S. paratyphi BH respectively. There was no statistical significant difference between those tested positive and the negative group in regards to gender or age, or WBCs count.
Conclusions: ABs titers are so high, that increases the doubts, and uselessness of the use of Widal test for diagnosis of typhoid fever, and raises the need for the estimation of basic titers for these ABs among Iraqi population.
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