What is a Widal Test?
The Widal Test is a time-tested serological diagnostic tool used to detect enteric fever, commonly known as typhoid and paratyphoid fever. These infections are caused by the Salmonella typhi and Salmonella paratyphi bacteria. A Widal test in Kolkata works by identifying specific antibodies in your blood that react to the "O" (somatic) and "H" (flagellar) antigens of these bacteria. When these antibodies are present, they cause a visible clumping (agglutination) on the test slide, helping doctors confirm if your persistent fever is due to typhoid.
Clinical Significance of O and H Antigens
The Widal report typically includes four parameters (S. Typhi O, S. Typhi H, S. Paratyphi AH, and S. Paratyphi BH). Understanding the titers is key to diagnosis:
- S. Typhi O: High levels of "O" antibodies usually indicate an active or recent infection. These appear early in the disease.
- S. Typhi H: High levels of "H" antibodies often suggest a past infection, a later stage of the disease, or prior vaccination.
- AH & BH Antigens: These specifically help identify paratyphoid fever (Type A or B), which is generally milder than typhoid but requires similar care.
- Titer Values: A result of 1:160 or higher is generally considered clinically significant for an active infection in endemic regions.
Serving Park Street, Camac Street, and Moulali
We provide accurate typhoid screening for residents and professionals across the Park Street, Camac Street, and Moulali belt. Since typhoid is often characterized by extreme weakness, our Sealdah hub offers priority home collection in these central areas. Your sample is processed in our NABL-certified facility to ensure the highest degree of diagnostic precision.
Widal Test Price in Kolkata
The price for a Widal Test is 410 at Apollo Diagnostics. A major advantage of this test is that no fasting is required, allowing for immediate sample collection as soon as symptoms appear. It is most effective when performed after the first week of continuous fever, as the body takes time to produce a measurable number of antibodies. If your symptoms are severe, your doctor may suggest a Typhidot test for even earlier detection or a Complete Blood Count (CBC) to monitor your white blood cell response. Our reports are typically delivered to your WhatsApp within 10-12 hours, enabling rapid start of antibiotic therapy.
No comments:
Post a Comment