I'm really worried because my father-in-law just tested positive for COVID-19. His report says "RESULTS Positive" but there's also something called "Bio Ref Interval" that shows as "Negative." Can you help me understand what that means? Is this related to a stage of COVID-19, or does it indicate something else?

Answered by 1 Apollo Doctors

Dr Chandra P

General Practitioner

MBBS
5+ Yrs

Consult Now

The "Bio Ref Interval" being negative typically indicates that the test result falls outside the reference range for a negative result, confirming the presence of the virus. As for COVID-19, it doesn't have specific "stages," but the severity can vary from mild to severe, and it is categorized based on symptoms and clinical findings, such as mild, moderate, severe, and critical. It's important to monitor his symptoms and follow healthcare advice for appropriate management.

Dr. Chandra Suggests...

Consult a Infectious Disease specialist

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Answered 04/07/2025

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My mom has had this swollen node on her neck for about 4 months now. It didnt hurt or anything at first, but it started to get bigger. After running through a bunch of tests like FNAC, turns out its a TB gland. We've been on TB meds for like 3 months now, but she's started feeling pain and theres pus building up inside the node. It hasn't gone down at all. What should we do?

increase the dosage take it according to her weight

Answered by 1 Apollo Doctors

I'm trying to understand the differences between the Tri-dot test and the ELISA method for HIV screening. Which one is more accurate, and is there a reason why youd choose one over the other? I'm a bit worried and want to make sure I get the right test.

Both **Tri-Dot** and **ELISA** are used for HIV screening. **ELISA (Enzyme-Linked Immunosorbent Assay)** is more sensitive and specific, detecting HIV antibodies or antigens in blood. **Tri-Dot** is a rapid test, easier for quick results but less reliable than ELISA, especially in early infection.

Answered by 1 Apollo Doctors

I'm worried about my friend who had a possible HIV exposure. He got tested at 30 days with the HIV12 antibodies combo test from Dr. Lal Path Labs and it came back negative. Then, he took another test at 45 days with SRL lab, and that was negative too. Is there still a chance he could seroconvert after 45 days? This whole situation has got us both stressed out.

ask him to get tested at an interval of 6 months if that also turns out negative,then he is free from disease

Answered by 1 Apollo Doctors

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.