Weil Felix Test

No preparation required

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testsTest(s) Included (6)


    6 tests included

*Optional Tests: Testing of these is conditional depending on results of other tests


blood sample




Age group

7 years & above

The Weil Felix Test, also known as the Weil-Felix reaction, is a laboratory test used to detect certain conditions or diseases caused by bacteriae from the genera Rickettsia and Proteus. This test helps in the diagnosis of rickettsial infections, typhus, typhoid fever, Rocky Mountain spotted fever, and some cases of pneumonia. By detecting the presence of specific antibodies in the blood sample, the Weil Felix Test aids in identifying these bacterial infections.

The bacteria Rickettsia is transmitted to humans by the bite of infected ticks and mites and by the faeces of infected lice and fleas. They enter via the skin and spread through the bloodstream to infect vascular endothelium in the skin, brain, lungs, heart, kidneys, liver, gastrointestinal tract, and other organs.

Rickettsial infections can present with the following symptoms:

  • Fever
  • Headache
  • Muscle aches
  • Rash
  • Nausea and vomiting
  • Lack of appetite
  • Backache
  • Swelling of the parotid glands (the glands behind the ear)
  • Abdominal pain

For the Weil Felix Test, a blood sample is required. The sample is collected through a simple venipuncture procedure, where a healthcare professional will draw blood from a vein, usually in the arm. The collected blood is then sent to the laboratory for further analysis.

Once the blood sample is drawn, it is sent to the laboratory for testing. The serum from the blood sample is tested against specific strains of bacteria from the genus Rickettsia. If antibodies against these bacteria are present in the serum, agglutination (clumping) occurs, indicating a positive result for the presence of Rickettsia bacteria in the body.

In case of a positive result for Rickettsia bacterial infection detected by the Weil Felix Test, appropriate treatment options will be prescribed by a healthcare professional. Treatment may include antibiotics such as doxycycline or tetracycline to eliminate the infection. It is crucial to follow the prescribed treatment plan and complete the full course of antibiotics to ensure effective eradication of the bacteria and prevent any complications.

To avail of the Weil Felix Test, individuals can easily book a slot through the Apollo 24|7 website or mobile app. The test can be scheduled at a convenient time and location. Once the blood sample is collected, it will be processed in the Apollo 24|7 laboratory, and the results will be available within 36 hours.

The benefits of an early diagnosis include:

1. Accurate results: By opting for the Weil Felix Test early on, individuals can ensure accurate and reliable results, enabling prompt diagnosis and timely treatment.

2. Prompt treatment: Early detection of Rickettsia bacterial infections allows for the timely initiation of appropriate treatment, reducing the risk of complications and promoting faster recovery.

3. Preventing transmission: Early diagnosis and treatment not only benefit the individual but also help prevent the spread of the infection to others.

packageTop Tests and Packages with Weil Felix Test

faqFrequently Asked Questions (FAQs)

What is typhus?

Typhus is a group of infectious diseases caused by bacteria from the Rickettsia genus. It is typically transmitted through flea or lice bites.

Can the Weil Felix test detect all types of Rickettsia bacteria?

The Weil Felix Test can detect antibodies against certain strains of Rickettsia bacteria commonly associated with human infections. However, it may not detect antibodies against all Rickettsia species.

Is fasting required before taking the Weil Felix Test?

No, fasting is not required for the Weil Felix Test. You can have a normal meal before getting tested.

How long does it take to get Weil Felix Test results?

The results of the Weil Felix Test are typically available within 36 hours after the blood sample collection.

Are there any risks or complications associated with the Weil Felix Test?

The Weil Felix Test is a safe procedure with minimal risks. Some individuals may experience mild bruising or discomfort at the site of the needle insertion.

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Weil Felix Test near you

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Why should Apollo be your preferred healthcare partner?

  • 40 Years of legacy and credibility in the healthcare industry.
  • NABL certified multi-channel digital healthcare platform.
  • Affordable diagnostic solutions with timely and accurate test results.
  • Up to 60% discount on Doorstep Diagnostic Tests, Home Sample Collection.
  • An inventory of over 100+ laboratories, spread across the country, operating out of 120+ cities with 1200+ collection centers, serving over 1800+ pin codes.

The information mentioned above is meant for educational purposes only and should not be taken as a substitute to your Physician’s advice. It is highly recommended that the customer consults with a qualified healthcare professional to interpret test results