HIV 101

Essential facts about HIV: prevention, testing, treatment, and care. Knowledge is a key tool in ending the epidemic.

Without treatment, HIV can make a person very sick. With treatment, a person living with HIV can live a long, healthy life, and prevention is a benefit too. Someone on treatment with an undetectable viral load cannot sexually transmit HIV. Undetectable = Untransmittable (U=U).

HIV can be transmitted by

Sexual contact
Sexual contact
Sharing needles to inject drugs
Sharing needles to inject drugs
Mother to baby during pregnancy, birth or breastfeeding
Mother to baby during pregnancy, birth or breastfeeding

HIV is NOT transmitted by

Air or water
Air or water
Saliva, sweat, tears or closed-mouth kissing
Saliva, sweat, tears or closed-mouth kissing
Insects or pets
Insects or pets
Sharing toilets, food or drinks
Sharing toilets, food or drinks

Protect yourself from HIV

  • Get tested at least once, or more often if you are at risk.
  • Use condoms the right way every time you have anal or vaginal sex.
  • Choose activities with little to no risk, like oral sex.
  • Limit your number of sex partners.
  • Don’t inject drugs, or if you do, don’t share needles or works.
  • Ask your health care provider if PrEP (pre-exposure prophylaxis) is right for you.
  • If you think you’ve been exposed to HIV in the last three days, ask about PEP (post-exposure prophylaxis) right away. It must start within 72 hours.
  • Get tested and treated for other STDs.

If you are living with HIV

  • Find HIV care. It keeps you healthy and greatly reduces the chance of transmitting HIV. An undetectable viral load means you cannot pass the virus to anyone (U=U).
  • Take your medicines the right way every day.
  • Stay in HIV care.
  • Tell your sex or drug-using partners that you are living with HIV.
  • Use condoms every time you have sex, and talk to partners about PrEP.
  • Get tested and treated for other STDs.
01

Prevention

HIV transmission can be prevented through several proven strategies. Pre-exposure prophylaxis (PrEP) is a daily medication that reduces the risk of getting HIV from sex or injection drug use by about 99% when taken as prescribed. Condoms, when used consistently and correctly, are highly effective at preventing HIV and other sexually transmitted infections. People who inject drugs can reduce risk by using new, sterile needles and syringes every time, and by accessing syringe services programs.

Treatment as prevention (TasP) is also highly effective: when someone living with HIV is on effective treatment and achieves an undetectable viral load, they cannot transmit HIV to their sexual partners (U=U: Undetectable = Untransmittable).

02

Testing

The CDC recommends that everyone between the ages of 13 and 64 get tested for HIV at least once as part of routine health care. People at higher risk should get tested more often, at least once a year. HIV testing is the only way to know for sure whether you have HIV.

Tests are available at many locations: doctor's offices, community health centers, health departments, and HIV testing sites. At-home tests are also available. Most HIV tests detect HIV antibodies, and some tests can detect the virus itself. Results from rapid tests are available in 20 minutes or less.

03

Treatment

HIV is a manageable chronic condition. People living with HIV can live long, healthy lives with proper treatment. Antiretroviral therapy (ART) is a combination of medications that reduces the amount of HIV in the body (viral load). The goal of treatment is to get the viral load to an undetectable level.

Starting HIV treatment as soon as possible after diagnosis is recommended. With treatment, people living with HIV can achieve an undetectable viral load, protecting their own health and eliminating the risk of transmitting HIV to sexual partners.

Glossary of terms

Key terms and concepts used across HIV prevention, care, policy, and advocacy.

Basic terms and facts

Capacity building assistance

A process for equipping the nation’s HIV prevention and treatment workforce through training, technical assistance and other resources to reduce HIV transmissions and improve health outcomes for people living with HIV.

Harm reduction

A strategy designed to reduce the harm of different behaviors on the people engaging in them.

Hepatitis C / viral hepatitis

A viral infection that causes liver inflammation, sometimes leading to serious liver damage.

HIV and AIDS

Human immunodeficiency virus; acquired immunodeficiency syndrome. HIV is a virus that attacks the body’s immune system and, if left untreated, leads to AIDS.

Intersectionality

The interconnected nature of social categorizations such as race, class and gender as they apply to a given individual or group, creating overlapping and interdependent systems of discrimination or disadvantage.

Language justice

Recognizing the social and political dimensions of language and language access, while working to dismantle language barriers, equalize power dynamics and build strong communities.

Population health

The health outcomes of a group of individuals, including the distribution of such outcomes within the group.

Prevention

Deterring the acquisition of a disease or stopping the progression of a disease that has already begun.

Racial justice

The practice of addressing race-based inequities and dismantling the systemic white supremacy built into our institutions and organizations.

Social justice

Fair treatment of all people in a society, including respect for the rights of minorities and equitable distribution of resources among members of a community.

Syndemic

Two or more epidemics that, when impacting a particular community, lead to worse health outcomes.

Syringe access

An umbrella term for programs providing sterile syringes for drug use and disposing of used syringes. Additional services often include drug treatment, health care and social services.

Prevention

HIV prevention

HIV can be transmitted through six bodily fluids: blood, ejaculate, pre-seminal fluids, rectal fluids, vaginal fluids and breast milk. Prevention strategies focus on keeping these fluids from being shared between a person living with HIV and a person without the virus, through barrier methods, treatment as prevention (TasP / U=U), pre-exposure prophylaxis (PrEP), post-exposure prophylaxis (PEP), and more.

Barrier methods

Condoms (both internal and external) are extremely effective when used properly and consistently. They prevent the exchange of bodily fluids for both partners.

Post-exposure prophylaxis (PEP)

A medicine taken after a potential exposure to HIV. It must be started within 72 hours of a possible exposure.

Pre-exposure prophylaxis (PrEP)

A medicine taken by people vulnerable to HIV to prevent acquiring the virus from sex or injection drug use.

Sterile injection equipment

HIV can survive on previously used injection equipment like syringes. People who use drugs should use, and need access to, sterile injection equipment.

Undetectable = Untransmittable (U=U)

A person with an undetectable viral load cannot transmit HIV. When a person living with HIV takes their medicines as prescribed, they can reach a point where their viral load is undetectable by lab tests. Treatment is also a powerful form of prevention.

Laws

Affordable Care Act

Also known as Obamacare, this 2010 law extended health insurance coverage to millions in the United States, protected those with preexisting conditions from being denied, and offered tax credits and cost-sharing reductions for lower-income families.

FDA blood ban

Implemented in 1983, this policy banned blood donations from men who had ever had sex with men. It was first amended in 2015 to a 12-month deferral period, then shortened in 2020 to three months.

Federal programs

340B Program

Started by Congress in 1990 and expanded in 1992, it requires pharmaceutical manufacturers to make pricing agreements with the Department of Health and Human Services for their drugs to be covered by Medicaid and Medicare Part B, providing discounts and lowering prices for individuals and safety-net providers.

Housing Opportunities for People Living with AIDS (HOPWA)

A Department of Housing and Urban Development program and the only federal program dedicated to the housing needs of people living with HIV, making grants to local communities, states and nonprofit organizations.

Medicaid

A federal and state program that helps with medical costs for some people with limited income and resources. More than 40% of people living with HIV are covered by Medicaid.

Medicare

The federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease.

Ryan White Program

A federal program run by the Health Resources and Services Administration that provides comprehensive HIV primary medical care, essential support services, and medications for low-income people living with HIV who are uninsured and underserved.