Fact Sheets A-Z

Get important information about different forms of TB, TB treatment, TB in people living with HIV, TB in pregnancy, and more.

Learn about CD4 cells – what they are, how HIV affects them, CD4 tests and CD4 counts, and what these mean for HIV infection and treatment.

Learn why clinical trials are done, what types there are, how to decide whether to participate, and why it's important for women to be involved.

Learn about lab tests that are important for your health – what they are, what they measure, and how results are used.

Get basic information about tests for resistance, tropism, and viral load – what they are, when you need them, and how they are used.

Get basic information about how the immune system works, its key parts, and how HIV can damage it.

Learn about reasonable accommodation in the workplace, your rights by law as a person living with HIV, and how to take care of yourself at work.

What is "Undetectable Equals Untransmittable" (U=U) — and what does it mean for women living with HIV? Learn more about this groundbreaking discovery, and the worldwide campaign to spread the word about it.

Learn some introductory information about the US's complicated immigration system – and its built-in biases.

There are several different options for reducing the chances of passing on HIV while trying to conceive. The information in this fact sheet can help you weigh the risks and benefits of each option and understand what might be best for you.