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Up-to-date, reliable HIV and sexual-health knowledge.

Answered: How Reliable Is an HIV Test at 7, 14, or 28 Days After Exposure?
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Answered: How Reliable Is an HIV Test at 7, 14, or 28 Days After Exposure?

After a risk, many want to test for HIV as soon as possible and wonder how reliable a test is at 7, 14, or 28 days. This article explains how much each stage can detect, how trustworthy a negative is, and when to retest for confidence.

What Is the HIV Testing Window Period? Why Retest at 90 Days?
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What Is the HIV Testing Window Period? Why Retest at 90 Days?

The window period is the time after exposure when a test can’t yet detect infection, even though the person is infected. Testing in this period can give a negative result despite infection. This article explains what the window period is, when each method can detect the virus, and why 90 days is a confident confirmation point.

HIV Test Is Negative but You Still Have Symptoms — Why, and When to Retest?
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HIV Test Is Negative but You Still Have Symptoms — Why, and When to Retest?

Testing HIV-negative but still having symptoms is a worrying situation for many. Causes can include testing too early, symptoms from other illnesses, or stress. This article explains the causes, when to retest, and when to see a doctor.

How to Prepare Before an HIV Test: Do You Need to Fast? What to Bring
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How to Prepare Before an HIV Test: Do You Need to Fast? What to Bring

Preparing for an HIV test is easier than many think — the short answer is “no fasting needed.” This article covers what to bring, when to test, what the before/during/after steps look like, and what you don’t need to worry about.

Free HIV Testing in Thailand: Where Can You Use Your Coverage?
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Free HIV Testing in Thailand: Where Can You Use Your Coverage?

Every Thai national can test for HIV free twice a year, using a national ID card to verify eligibility. This article covers what free testing includes, where to go, how to use your right, and how to prepare before testing.

What Causes a False-Positive HIV Test Result?
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What Causes a False-Positive HIV Test Result?

A false positive is a screening result that reads “possible infection” when the person isn’t actually infected. It can arise from pregnancy, autoimmune conditions, or technical factors. This article explains the causes, the two-step testing system that filters these out, and what to do if you get a reactive screen.

What Is Anonymous HIV Testing? No ID Needed — Where Can You Do It?
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What Is Anonymous HIV Testing? No ID Needed — Where Can You Do It?

Anonymous HIV testing lets you test without revealing your real name, using a personal code instead — so privacy is very high. This article explains what anonymous testing is, how it differs from confidential testing, whether you need an ID card, where to do it, the process, and why it matters.

Rapid Test vs Gen 4 vs NAT: Which HIV Test Should You Choose?
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Rapid Test vs Gen 4 vs NAT: Which HIV Test Should You Choose?

Rapid Test, Gen 4, and NAT are the three common HIV tests, each strong in a different way — speed, accuracy, convenience, and cost. This guide helps you choose which one fits your situation, with a comparison table and a decision flow.

HIV Self-Testing at Home: Blood-Based vs Oral (Saliva) Tests
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HIV Self-Testing at Home: Blood-Based vs Oral (Saliva) Tests

Home HIV self-tests come in two main types: a fingerstick blood test and an oral-fluid (gum-swab, often called “saliva”) test. This guide explains how they differ, how to use them accurately, their accuracy, pros and cons, and what to do with your result.