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What is a Widal Test ?

The Widal test is a diagnostic blood test introduced by F. Widal in 1896 to measure antibody titres in suspected typhoid or paratyphoid fever cases, collectively termed enteric fever. Antibody titres reflect the immune response by indicating the presence and levels of specific antibodies in the blood in response to foreign substances (antigens). The Widal test targets antibodies against the O and H antigens of Salmonella Typhi and the H antigens of Salmonella Paratyphi . It uses a suspension medium with killed Salmonella Typhi bacteria as the antigen to diagnose typhoid fever in patients with fever. Therefore, individuals with symptoms of enteric fever may benefit from undergoing a Widal test.

Given its role in diagnosing enteric fever, the Widal test can be a critical diagnostic tool aiding in timely detection and treatment. Therefore, if you live in Delhi and are experiencing symptoms of enteric fever, consider getting a Widal test in Delhi today.

Widal Test (Slide Method) Parameters

The Widal test, an agglutination test, identifies cell clumping caused by specific antibodies (agglutinins) in the blood reacting to particular antigens. These antibodies target two essential antigens of Salmonella Typhi : the O antigen and the H antigen. The test also incorporates the H antigens of Salmonella Paratyphi . Detecting these antibodies aids in diagnosing enteric fever by indicating the body's immune response to these bacterial infections.

The Widal test has four parameters, which represent the levels of antibody titres against the bacteria causing enteric fever. The parameters include:

Salmonella Typhi O (TO)
Salmonella Typhi H (TH)
Salmonella Paratyphi A, H (AH)
Salmonella Paratyphi B, H (BH)

Widal Test Preparation

Before booking the Widal test in Delhi, consider the following factors:

Prerequisites

No fasting is needed for the Widal test.

Best Time to Get Tested

You can schedule the Widal test at any time during the day.

Who Should Get a Widal Test

People showing symptoms such as fatigue, fever, gastrointestinal issues (abdominal pain, diarrhoea, or constipation), and headache, especially if they have been in areas with an elevated risk of typhoid or paratyphoid fever, should undergo a Widal test.

Cautions Before Taking the Widal Test

There are no special precautions required for this test.

Why Take a Widal Test ?

Typhoid bacteria have an incubation period of 6 to 14 days, and in some cases, up to 30 days. This period is the interval between infection and the appearance of symptoms. Paratyphoid bacteria have an incubation period of 1 to 10 days. Symptoms often worsen gradually over a period of 3 to 4 days.

A doctor might request a Widal test if you exhibit symptoms of typhoid fever. Paratyphoid fever shows similar, but less severe, symptoms. These signs and symptoms include:

High fever or chills
Headache
Loss of appetite
Constipation
Red rash on the chest and abdomen
Extreme fatigue
Feeling unwell, weak, or sick
Pain in the abdomen
Diarrhoea
Sweating
Blood in the stool
Sore throat and persistent cough
Bleeding from the nose
Weight loss
Decreased heart rate
Difficulty in concentrating
Confusion or hallucinations
Enlarged spleen or liver
Poisoning of blood

It is important to keep in mind that typhoid vaccination does not offer complete immunity, with 20–50% of vaccinated people potentially contracting the disease upon exposure.

Individuals at higher risk for typhoid may be recommended to undergo a Widal test, including:

Young children, as they are more susceptible to these diseases than adults.
People who are in close contact with an infected individual.
Travellers to regions with high rates of typhoid and paratyphoid, such as India, Bangladesh, the Middle East, and Africa.

Widal Test Results & Interpretation

Below is a breakdown of the results of the Widal test:

Type	Antibody	Titre	Interpretation
Salmonella Typhi	TO	<1:80	Negative
Salmonella Typhi	TH	<1:80	Negative
Salmonella Paratyphi	AH	<1:80	Negative
Salmonella Paratyphi	BH	<1:80	Negative

Interpretation

A titre under 1:80 is considered negative, meaning the patient likely does not have an infection.

Titres of 1:80 or more are usually deemed positive, though the exact threshold can vary by population and region. A rising titre, noted through two or more samples taken 4 to 6 days apart after symptom onset, is more indicative than a single high titre. The results should be correlated with the patient’s clinical findings to make a final diagnosis.

Limitations

Elevated antibody titres in vaccinated patients may result in false-positive outcomes. Similarly, results may be misleading for individuals with previous infections or immunisations.

Agglutinins typically appear in the blood by the end of the first week of infection, so samples taken earlier may show negative results.

While the serological findings from this test are useful, they should not substitute culture-based methods for identifying the causative organisms. Efforts should be made to recover and identify the pathogens through culture and biochemical tests.

FAQs on Widal Test in Delhi

If the Widal test is performed too early, it may yield a false-negative result, wrongly suggesting no antibodies are present. Conversely, a false-positive result, possibly caused by prior infections or vaccinations, inaccurately suggests the presence of antibodies.

A Widal test, or blood test for typhoid, is conducted to detect antibodies in the blood against particular antigens of Salmonella bacteria, primarily Salmonella Typhi and Salmonella Paratyphi . This test aids in diagnosing enteric fever, which includes typhoid and paratyphoid fever, by showing the body's immune response to these bacterial infections.

No, you do not need to fast for the Widal test or Typhoid test at home.

Yes, you can schedule a home sample collection for the Widal Blood test or Typhoid Blood test with Orange Health Labs and enjoy the convenience of sample collection within 60 minutes of booking, subject to slot availability.

Blood tests are generally safe. You might feel some discomfort at the site where the needle is inserted during sample collection, but it typically resolves quickly.

The Widal test does not have a defined 'normal' range. Instead, titres below 1:80 are generally regarded as negative, while titres of 1:80 or greater could indicate infection. Nonetheless, interpretation depends on clinical variables and the disease's prevalence within the region.

Upon sample collection, results will be delivered to you via WhatsApp and the app within 6 hours if you are based in Delhi. Timeframes may differ in other locations.

The frequency of Widal testing is based on your doctor's guidance. If you have been diagnosed with typhoid or paratyphoid fever, your doctor may suggest having this test done every 2 weeks, tailored to your unique clinical situation and symptoms.

In the Widal test, the parameters assessed include the levels of antibodies directed against distinct antigens of Salmonella bacteria, which encompass the O and H antigens of Salmonella Typhi and the H antigens of Salmonella Paratyphi .

The presence of antibodies against Salmonella bacteria, as indicated by the Widal test, supports the diagnosis of typhoid and paratyphoid fever.

Mixing serum and antigen occurs directly on a slide in the Slide method, while the Tube method mixes them in test tubes.

Without having to visit a physical lab, Orange Health provides the fastest Widal test services near you across Delhi at the convenience of your home. Localities include but are not limited to Connaught Place, Chandni Chowk, Karol Bagh, Lajpat Nagar, South Extension, Greater Kailash, Hauz Khas, Saket, Vasant Kunj, Dwarka, Rohini, Pitampura, Janakpuri, Rajouri Garden, Mayur Vihar, Preet Vihar, Shahdara, Laxmi Nagar, Green Park, Safdarjung Enclave, Defence Colony, New Friends Colony, Kalkaji, Malviya Nagar, Nehru Place.

The Orange Health Experience

Instant Sample Collection

99.98% On-time arrival

An eMedic is assigned within minutes of booking, so you can get tested as per your convenience.

Highly Trained eMedics

100+ hours of training

Every eMedic is DMLT-certified and trained to collect your sample with a single, painless prick.

Personalised Health Profile

Health History & Insights

Track your health trends, understand your test results, and view your health history and your family's in one place.

Owned & Automated Labs

NABL-certified Labs

High-speed automated machines enabling accurate testing and reports in 6 hours.

4.9

Google Rating

Highest Rated Diagnostic Lab

Best lab ... Great experience with orange lab ... Special thanks to concern department 😄
Priyanshi Yaduvanshi15 Nov 2022 • Delhi
5.0
Not seen a service with such quick time slots Almost booked test immediately
Aditya Kumar Kabra6 Nov 2022 • Delhi
5.0
It was a great experience. I received my report before timeline. Great support by Orange team.
Lokesh Ranjan24 Dec 2022 • Delhi
5.0
Great and quick service
VIJAY RAJPUT6 Feb 2023 • Delhi
5.0
Great service. Really fast
GABRIELE GALATI12 Feb 2023 • Delhi
5.0
Quick, courteous and convenient
Srinivas Varanasi27 Feb 2023 • Delhi
5.0
Everything done was explained and done swiftly. The results also came out quite fast.
Reshmi Babu24 Mar 2023 • Delhi
5.0
Every commitment of booking, collection and report are fulfilled by Orange gently, politely and smoothly. I found/experience thevOrange Health Labs well reputed on my case.
Tufail Khaki13 May 2023 • Delhi
5.0
Fast and accurate and best thing is you don’t have to go anywhere and it’s also pocket friendley
Ritesh Kumar25 May 2023 • Delhi
5.0
Highly trained ppl come to take ur sample. And i got my reports in 2 hours...
Sunil Panjabi3 Jun 2023 • Delhi
5.0

Payment & Refund Policy

We do not accept cash payments
All modes of online payment are accepted
Refunds will be credited back to the source of payment within 5-7 working days of order cancellation.

Widal Test at Home in Delhi

Test Name	Widal Test (Slide Method)
Also Known As	Typhoid test, Enteric Fever test or Widal Agglutination test
Purpose	To identify Typhoid and paratyphoid fever.
Pre-test Information	Fasting is not required for a Widal Test.
Report Delivery	Get reports within 6 hours.
Frequency	As prescribed by your doctor.
Home Testing	Yes, home blood sample collection is available in 60 minutes from booking.
Sample Required	A blood sample is required for a Widal Test.

Widal Test Price in Delhi

The Widal test cost in Delhi is ₹ 290. This Widal test price includes the fastest free home sample collection within 60 minutes of booking, and the reports are available in 6 hours.

How to Book a Widal Test Near Me

Booking a Widal test with Orange Health Labs in Delhi is fast and convenient. Just follow these easy steps:

Search for the Test: Look for the Widal test Near Me or Widal test at home and click on Orange Health’s listing.
Select and Schedule: Choose the test, review any instructions, enter your address, and select a convenient time slot for home sample collection.
Home Sample Collection: A certified eMedic will visit your home at the chosen time to collect the blood sample.
Lab Processing: Your sample will be tested at our NABL-accredited and ICMR-approved laboratories.
Receive Reports: You’ll receive your reports within 6 hours via email, WhatsApp, or on the Orange Health app.

With Orange Health Labs, booking a Widal test at home in Delhi is simple, accurate, and ensures comfort with at-home sample collection.

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Orange Health Labs: Who Are We

Welcome to Orange Health Labs! Experience the convenience of a high-quality diagnostic laboratory, within the comfort of your home. We provide laboratory services that bring cutting-edge diagnostics right to your doorstep, ensuring you have easy access to essential healthcare solutions. We are your trusted partners, backed by certifications, ensuring top-notch accuracy and quality. With a track record of exceeding 1,000,000 tests, our credibility is trusted by healthcare professionals. So, get ready to embrace the luxury of premium diagnostics without stepping out of the comfort of your home – because your well-being deserves nothing but the best.

Steps to Book a Test/ Health Package

Say goodbye to long queues and hello to hassle-free blood sample collection from our certified pathology lab right at your doorstep. Here's a straightforward step-by-step guide: • Visit www.orangehealth.in or use the Orange Health Lab Test At Home app. • Provide your details through the platform. • Skilled, trained, and vaccinated eMedics will reach you within 60 minutes or as per your chosen time slot. • Collected samples will be sent straight to our certified pathology laboratory for testing. • Expect your test reports via WhatsApp & Email within 6 hours, based on the tests done. • You can also conveniently access your reports on our app for easy reference.

About The Brand

Our view on healthcare is that, like much else, it should reach our homes – conveniently and affordably. We believe being connected to your doctor matters. A personal connect and context in healthcare cannot be replaced. Effective medicine will be when online and offline worlds combine. Our efforts will be to create services and products that doctors can use with their patients in clinic or remotely at their homes to better assess and diagnose patients' health and provide the right treatment.

Frequently Asked Questions

Why should you choose Orange Health Labs over other pathology labs?

Orange Health Labs stands out as the fastest diagnostic lab in town. From rapid at-home testing to expert eMedics, we blend cutting-edge diagnostics with comfort. With trusted certifications for our lab, we're your trusted path to accurate results. Experience health on your terms!

How does home collection within 60 minutes work?

We guarantee home pathology services within just 60 minutes from order placement in Bangalore, Delhi, Gurugram, Noida, Hyderabad, Faridabad, and Mumbai. Our skilled, vaccinated eMedics, following your chosen schedule, will arrive at your door. Your sample will be carefully handled, maintained at the right temperature, and transported to our certified labs. And rest assured, the results will reach you with even greater speed!

How are reports delivered?

You will receive your reports via WhatsApp within 6 hours for most tests with our diagnostic laboratory. Additionally, you can access and view the reports on our app at any time.

What are the modes of payment available for booking?

We offer a range of convenient payment options for our home pathology services. These include UPI, Mastercard, Visa card, Debit cards, and Credit card options. The choice is yours!

Can I cancel a test booking?

You can cancel the booking from the Order Tracking Page on our app. Also, you can reach out to customer support via WhatsApp at 9008111144. We're here to help, and we'll get back to you in a flash!

Can I reschedule a booked test?

If the need to reschedule a booked test arises, you can reschedule the booking from the Order Tracking Page on our app. Also, you can reach out to customer support via WhatsApp at 9008111144. Our team is primed to swiftly address your queries and provide the support you seek.