TYPHIDOT IgG
Additional information | |
|---|---|
| Department | SEROLOGY |
| Speciality Name | TYPHIDOT IgG |
| Test type | Pathology |
| Report | 24 Hours |
| Also known as | |
| Availability | All centre |
Preparation
No Patient preparation is needed
Overview
The Typhidot IgG test is the blood test suggested by a doctor after suspecting exposure to Salmonella Typhi bacteria or to detect past exposure to the bacteria. This test is very important for the detection of late-stage infection and the recovery phase of patients from infection. Salmonella Typhi is very common in developing countries, causing typhoid fever. This is usually due to consumption of contaminated water leading to fever, fatigue, vomiting, tiredness, etc. The exposure to bacterial infection is very dangerous in some cases. IgG antibodies are produced by the development in the later stage of infection, compared to IgM, which is generated with infection and shows the current state of the patient. IgG antibodies remain for a longer period of time in the body for months or years which helps to diagnose the exposure of patients towards the bacteria.
What is the Typhidot IgG Test?
The Typhidot IgG test is a blood test related to an immunological assay, used to detect IgG antibodies in the blood after exposure to Salmonella Typhi bacteria. This test helps to indicate the long time response of the immune system towards the bacteria and helps to differentiate between:
- Early infection in the patient
- Active infection in the patient
- Past or resolved infection in the patient
Typhidot IgG Result Interpretation
| S. No. | Typhidot Result | Interpretation |
| 1 | IgM Negative, IgG Negative | No evidence of typhoid |
| 2 | IgM Positive, IgG Negative | Early acute infection |
| 3 | IgM Positive, IgG Positive | Active or progressing infection |
| 4 | IgM Negative, IgG Positive | Past infection or late-stage typhoid |
What is the Nature of Typhidot IgG Test?
The Typhidot IgG test is:
- Qualitative
- Reported as Positive or Negative
- Based on immunochromatographic or dot enzyme immunoassay techniques
Comparison with Other Typhoid Tests
| S. No. | Test | Detects | Best Time | Key Role |
| 1 | Blood culture | Bacteria | First week | Gold standard |
| 2 | Widal test | Antibodies | After 7–10 days | Traditional but less specific |
| 3 | Typhidot IgM | IgM antibodies | Early stage | Early diagnosis |
| 4 | Typhidot IgG | IgG antibodies | Late or past stage | Detects previous exposure |
Why to go for the Typhidot IgG Test
There are various reasons to go for Typhidot IgG Test and these include:
- Detection of Past Typhoid Infection
- Confirmation of Late-Stage Typhoid
- Supporting Diagnosis When IgM is Negative
- Epidemiological Studies
- Differentiating Acute vs Old Infection
- Follow-Up of Treated Patients
Causes of Positive Typhidot IgG
| S. No. | Cause | Explanation |
| 1 | Past typhoid infection | Most common cause |
| 2 | Late-stage active typhoid | IgG appears after 7–10 days |
| 3 | Partial treatment | IgG persists even after therapy |
| 4 | Carrier state | Rarely |
| 5 | Cross-reactivity | With other Salmonella species |
Typhidot IgG vs Typhidot IgM
| S. No. | Feature | IgM | IgG |
| Appears | Early | Later | |
| Indicates | Recent infection | Past or late infection | |
| Duration | Short-term | Long-lasting | |
| Diagnostic role | Early detection | Confirmation and history |
What are the Benefits of the Typhidot IgG Test?
There are various benefits of Typhidot IgG Test including:
- Helps detect previous typhoid exposure
- Useful in late presentation cases
- Simple and rapid
- Requires minimal laboratory setup
- Cost-effective
- Helpful in epidemiological surveys
- Supports treatment decisions
- Useful when culture tests are unavailable
What is the Typhidot IgG test price in Delhi?
The Typhidot IgG test price in Delhi usually starts from INR 900. The cost may change depending on the diagnostic centre, your location, available discounts and whether the test is done at private or Government labs.
How can I find a Typhidot IgG test centre near me?
If you are searching for a Typhidot IgG test near you in Delhi, you can visit City Imaging and Clinical Labs. The lab offers accurate testing at affordable prices. It is NABH and NABL accredited and has experienced doctors with trained staff for reliable diagnostic testing of Typhidot IgG testing.
Frequently Asked Questions (FAQ’s)
Is fasting required for the Typhidot IgG test?
No. fasting is not required for this test
Is Typhidot IgG test painful?
The test is not painful but only a small needle prick is needed.
How long does IgG remain positive?
Antibodies can remain in the body for months or years, which helps to confirm previous exposure.
How fast are results available for the Typhidot IgG test?
Usually within the same day.
Is Typhidot IgG test quantitative?
No, it is qualitative.
Should this test be repeated?
Only if advised by a doctor to repeat the test
Is it a reliable test?
Yes, when interpreted with clinical findings and at a registered laboratory with a good facility.
Is this test expensive?
No, this test is affordable.
What is the price of the Typhidot IgG test in Delhi?
The price of Typhidot IgG in Delhi is INR 900.
Can I book a Typhidot IgG test online in Delhi?
Yes, you can book a Typhidot IgG test online in Delhi.
Where is the Typhidot IgG Centre near me in Delhi?
Patients can visit City Imaging and Clinical labs for Typhidot IgG test or any other type of blood test in Delhi.
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