It usually starts slowly: a fever that rises a little more each day, with weakness, headache, stomach pain and loss of appetite. Because these symptoms overlap with many other fevers, a blood test is needed to confirm it.
The two typhoid tests most often booked in India are the Widal test and the typhoid IgM/IgG antibody test. This guide explains what each one shows, which week of fever it is useful in, why a Widal result can mislead, and what the tests cost on SecondMedic.
Typhoid tests at a glance
| Test | What it detects | Most useful |
|---|---|---|
| Blood culture | The typhoid bacteria themselves | First week of fever, before antibiotics |
| Typhoid IgM/IgG | Antibodies against typhoid bacteria | From the end of the first week |
| Widal test | Antibodies against O and H antigens of S. typhi and S. paratyphi A and B | After the first week, ideally repeated |
Blood culture: the reference test
A blood culture grows the bacteria from a blood sample and is the most reliable way to confirm typhoid. It works best in the first week of fever and before any antibiotic is taken, and it also shows which antibiotics will work. It takes a few days and is usually ordered by a doctor or hospital.
Typhoid IgM/IgG antibody test
This test looks for two antibodies the body makes against typhoid bacteria. IgM appears first and suggests a recent infection, while IgG appears later and can indicate a current or past infection. Antibodies take several days to form, so the test is more useful from the end of the first week of fever than on day one or two. The Typhoid Test (IgG and IgM) on SecondMedic checks both.
Widal test
The Widal test measures antibodies against the O and H antigens of Salmonella typhi and the H antigens of Salmonella paratyphi A and B. It is inexpensive and widely used, but it has real limits:
- It is often negative in the first week, because antibodies have not formed yet.
- In India many people already have some antibodies from past infections or the typhoid vaccine, so a low positive result can be a false alarm.
- Other infections can sometimes cause a positive result.
For these reasons, a single Widal result should not be read on its own. A high titre (for example O and H at 1:160 or above, though the cut-off varies by region and lab) or a rising titre on two samples taken about a week apart is more meaningful. Your doctor will interpret it with your symptoms.
Which typhoid test should you take?
- Fever for less than a week: ask your doctor about a blood culture. Antibody tests may still be negative.
- Fever for a week or more: the typhoid IgM/IgG test, the Widal test, or both, along with a complete blood count.
- Fever without a clear cause: a panel that checks typhoid together with malaria and dengue, because their early symptoms overlap.
The Jaanch Winter Fever Mini combines the Widal test with a malaria test and a complete blood count. The Winter Fever Screen with Urine Analysis adds a urine test, which helps when a urinary infection could be the cause of the fever. For dengue, malaria, typhoid and chikungunya in one sample, see the Jaanch Fever Panel Advanced.
Typhoid test price on SecondMedic
| Test | Includes | Price |
|---|---|---|
| Widal | S. typhi O and H, S. paratyphi A and B (H) | Rs.264 |
| Jaanch Winter Fever Mini | Widal, malaria and CBC | Rs.704 |
| Winter Fever Screen with Urine Analysis | Widal, malaria, CBC and urine analysis | Rs.788 |
| Typhoid Test (IgG and IgM) | Typhoid IgG and IgM antibodies | Rs.1,005 |
| Jaanch Fever Panel Advanced | Typhoid, dengue, malaria, chikungunya, CBC, CRP, ESR | Rs.1,680 |
Prices were checked at the time of writing and can change, so confirm the current price on each test page. Fasting is not needed. A trained phlebotomist collects the sample at home, and reports are shared digitally within 48 to 72 hours.
Symptoms that need a doctor quickly
- Fever that keeps rising or lasts more than three days
- Severe stomach pain, a swollen abdomen or blood in the stool
- Confusion, extreme weakness or dehydration
- Fever in a young child, an older adult or a pregnant woman
Typhoid is treated with antibiotics chosen by a doctor. Do not start antibiotics on your own before testing: it can make a blood culture negative and adds to drug resistance, which is a growing problem with typhoid in India. Read more about the symptoms of typhoid and early signs of typhoid in children.
Preventing typhoid
- Drink boiled or filtered water, and avoid ice and raw street food during outbreaks.
- Wash hands with soap before eating and after using the toilet.
- Ask your doctor about the typhoid vaccine, especially for children and before travel.
If your report is positive or unclear, you can consult a doctor online to understand what it means and what to do next.
This article is for general information and does not replace medical advice. Typhoid test results should be interpreted by a doctor together with your symptoms.
