ScanHealth
Infectious Disease

What is HIV? Your Complete Guide

Screening test for Human Immunodeficiency Virus. Modern tests detect both antibodies and antigens (4th generation), catching infection earlier than older tests.

💡Simply Explained

This test screens for HIV — a virus that attacks your immune system. Modern tests are very accurate, but a single positive screening test always needs confirmation. If positive and confirmed, early treatment means a near-normal life expectancy.

⬆️What High HIV Means

Possible Causes

  • HIV infection

Foods That Can Help

  • Balanced, nutritious diet to support immune system
  • Protein-rich foods: dals, eggs, lean meats
  • Fruits and vegetables for micronutrients
  • Stay hydrated

⬇️What Low HIV Means

Possible Causes

  • Not applicable — qualitative test

Foods That Can Help

  • No intervention needed

🏃Lifestyle Actions

If Your HIV Is High

  • A reactive screening test MUST be confirmed with a confirmatory test (Western blot or line immunoassay)
  • False positives can occur — don't panic before confirmation
  • If confirmed, start antiretroviral therapy (ART) — available free at government centers
  • Connect with an HIV specialist
  • Confidentiality is your right

If Your HIV Is Low

  • Non-reactive is normal
  • Remember the window period: test may be negative within 2-6 weeks of exposure
  • If recent exposure concern, retest after the window period

🩺When to See a Doctor

High HIV

Reactive result needs confirmatory testing within 1-2 weeks. If confirmed, start ART as soon as possible — early treatment is the single most important factor for long-term health.

Low HIV

Non-reactive — no concerns. If recent high-risk exposure, retest after 6 weeks.

🎯Did You Know?

Modern HIV treatment (ART) is so effective that a person diagnosed early and taking medication regularly has a near-normal life expectancy. The virus becomes "undetectable" — meaning it can't be transmitted to partners. U=U (Undetectable = Untransmittable).

❓Frequently Asked Questions

What is HIV?

This test screens for HIV — a virus that attacks your immune system. Modern tests are very accurate, but a single positive screening test always needs confirmation. If positive and confirmed, early treatment means a near-normal life expectancy.

What causes high HIV?

HIV infection.

What causes low HIV?

Not applicable — qualitative test.

How can I check my HIV levels?

You can check your HIV levels with a routine blood test. Upload your lab report to ScanHealth for an instant, plain-language explanation.

Check Your HIV Results Instantly

Upload your blood test report and get a plain-language explanation of your HIV result — plus all other markers. Free.

Upload Your Report

This guide is for informational purposes only and does not constitute medical advice. Reference ranges may vary by lab. Always consult a qualified healthcare provider for diagnosis and treatment.