What is the Widal test and why is the Widal test done?
Know about Typhoid
The test that is done to check for typhoid i.e. temporary fever is called the Vidal Widal test.
Typhoid test is done in two ways
- one by Vidal
- typhoid kit
The Vidal test is a serological test and was discovered in 1896 by Grimbaum and Vidal. This test helps in detecting the Gram-negative bacteria Salmonella Typhi.
Salmonella typhi is the main cause of typhoid.
Salmonella typhi has O antigen on its cell wall and H antigen is found in its flagella. When there is an infection due to Salmonella typhi in the body, a special antibody is produced due to these antigens inside our body.
These antibodies are detected by the Widal test. These antibodies can be recognized only a week after infection.
How is the Vidal test done?
The Widal test is an agglutination test in which one’s antigen is mixed with one’s antibody.
In this, the patient’s serum is mixed with a suspension of dead bacteria O&H.
If the serum contains antibodies to bacteria, they will react with the antigen to form clumps, which will appear on the slide.
We can understand the intensity of typhoid fever by the Vidal test. Many reports have a + sign, and many have a value of 1:180 or 1:240 or similar.
The higher the infection, the higher this value will be or the signs of +, ++, +++ etc. will be formed. If positive, it indicates typhoid infection.
What is a typhoid test?
A typhoid test is a very easy way to measure typhoid infection.
In this, the patient’s serum is put in a kit and she immediately tells whether the patient has typhoid infection or not.
Its report is not as complicated as that of the Widal test and one can understand it by looking at it in one go. Typhidot test is also easy for doctors.
How much do the Widal test and typhoid test cost?
The Vidal test is cheap and costs around Rs 200. Whereas typhoid test is done for around Rs 400.
Most of the labs these days prefer the typhoid test because it is very easy to do.
Let us now know something about the disease for which the Vidal test is done.
What is typhoid
Typhoid is an infection caused by bacteria called Salmonella typhi. The main cause of typhoid is infected food and water. When you have typhoid, you start getting fever and then diarrhoea, vomiting and abdominal pain also start.
Symptoms of typhoid start on the second or third day after infection.
Many people say that if they did not eat food outside, then how did they get typhoid, then the reason for this may also be that you have touched an infected object and after that, you have touched the mouth with your hands without washing your hands.
Typhoid fever can last from 4 weeks to 6 weeks and it most commonly affects our liver, muscles and spleen.
Symptoms of Typhoid
- Fever that progresses slowly
- Weakness and fatigue
- Vomiting or vomiting
- Muscle pain
- Abdominal pain, sometimes mild, sometimes severe
- Loss of appetite
- Dry cough
If typhoid lasts for a long time, then your brain reaches a state where you start getting confused about things and the ability to think and think is reduced.
Along with this, you feel very tired and you do not even dare to open your eyes.
This is a very dangerous condition and in this condition, the patient should be immediately admitted to the hospital.
What can happen if typhoid is not cured?
If typhoid is not treated, then the patient starts perforation from the intestines, due to which internal bleeding starts in the stomach.
If treatment is not received for four weeks, then the intestines become perforated which causes internal bleeding.
Apart from this, your kidney starts getting damaged, infection and inflammation start in the heart muscles.
Many people get pneumonia and pancreatitis, along with meningitis and brain-related problems which are very dangerous.
How does typhoid fever start?
Typhoid fever occurs in many stages, let’s know its stages
1) In the initial phase of typhoid, the patient has a mild fever, cough and headache.
2) In the second stage of typhoid, the patient feels high fever and abdominal pain.
3)The patient feels very tired and becomes irritable. Apart from this, the thinking ability of the patient decreases. He gets confused.
4) In the third round, perforation takes place in the patient’s intestines and blood starts coming from his intestines.
5)The patient becomes dehydrated and feels tired even in sitting or lying down. This is a very complex situation.
6) Kidney of the patient in the last round
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