What Is The Function Of Widal Examination In Gastroenteritis Sufferers?
Thank you for asking HealthReplies.com. I am dr. Princess Claudya will help answer your questions.
Widal examination is used to detect salmonella enterica bacteria (salmonella typhi or paratyphi) which causes typhoid and paratyphoid fever through antigen-antibody reactions. Positive Widal test means that there are anti-substances (antibodies) to salmonella bacteria, which means that someone has had contact / infection with the salmonella enterica bacteria.
Widal examination should be done twice, namely in the acute phase and a span of 7-10 days after the acute phase. It is said to be positive if there is an increase in the second examination titer at least 4 times from the first examination, or the results of the examination titer O> = 1: 160 and titer H> = 1: 320 on any examination.
Widal examination can also be positive in the condition of someone who has received typhoid vaccination. Widal is no longer used as a definitive diagnosis of typhoid, because it is not specific to the germ that causes typhoid. Examinations for typhoid fever that are more specifically used are blood / stool / urine culture and anti salmonella typhi IgM (TUBEX) tests.
Gastroenteritis is the medical term for inflammation of the gastrointestinal tract. The causes of gastroenteritis can be various, namely viruses (rotavirus), bacteria (salmonella, shigella, e coli), parasites (entamoeba histolitica, giardia lamblia). Widal examination can only detect gastroenteritis caused by salmonella enteritis bacteria (typhi and paratyphi). So that gastroenteritis due to other causes such as viruses, parasites, or bacteria other than salmonella enterica, cannot be detected using widal.
That is the explanation from me. Hopefully helpful and useful.
dr. Princess Claudya