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HIV and AIDS

Learn about HIV and AIDS and find information on symptoms, testing, and more.

HIV (Human Immunodeficiency Virus) is a caused by a virus that attacks the immune system, making it harder for the body to fight infections. HIV infection can lead to AIDS (Acquired Immunodeficiency Syndrome). However, with proper medicine, HIV is now a manageable chronic disease. A person with HIV fully in treatment can live a long and healthy life, and have sex without risk of passing HIV to others.

Contact the Mayor’s Health Line for free, confidential, multilingual health information and referral services at 617-534-5050. The Mayor’s Health Line helps all residents regardless of immigration status or gender identity.

How to Prevent HIV/AIDS

HIV spreads through body fluids such as vaginal fluids, semen, and blood. Anyone exposed to the virus through sexual or blood contact can get infected. You can pass HIV through sex (vaginal, oral, or anal), injection drug use, and from mother to child during pregnancy, birth, or breastfeeding. In very rare cases, HIV can pass on through blood transfusions or organ transplants. However, all blood and donated organs undergo screening for HIV, so the chance of infection this way is very small. Individuals can still spread HIV even if they don't have symptoms. To help prevent HIV/AIDS: 

  • Use a new barrier method every time (like a condom or dental dam) for each sexual act, partner, and when switching between oral, anal, or vaginal sex.

    • Condoms made from “natural” materials (such as lambskin) can help prevent pregnancy, but they do not protect against sexually transmitted infections (STIs). For STI protection, use latex, polyurethane, or polyisoprene condoms. Check the product label to confirm what type of condom you’re using.
  • Use new needles: If using injectable drugs, always use a new needle and never share needles.

  • Consider PrEP for HIV prevention: PrEP is available as a daily pill or an injection once every month for the first two months and then every two months for people who are HIV-negative. PrEP helps to prevent individuals from contracting HIV if they are at risk of exposure.

  • Use PEP after possible HIV exposure: PEP can prevent HIV if started as soon as possible, within 72 hours of exposure.

  • Get tested regularly: Both you and your partner should get tested frequently to know your status. Talk to a healthcare provider about getting tested or visit LetsTalkHIVBoston.com for more information.

  • Practice good hygiene: Wash your hands often with soap and water for at least 20 seconds, follow cleaning instructions for toys and check for damage, and use condoms on toys. 

  • Understand that having sex while under the influence of drugs and/or alcohol can increase the likelihood of unprotected sex.

Risk factors for HIV include:

  • Anal or vaginal sex without using a condom (latex, nitrile, or polyurethane)
  • Having multiple sex partners
  • Having another sexually transmitted infection (STI) like chlamydia, gonorrhea, or syphilis
  • Sharing needles or "works" if injecting drugs
  • Being born to an HIV infected woman
  • There is little to no risk of getting or transmitting HIV from oral sex

HIV does not survive long outside the human body, and it cannot reproduce outside a human host. It is not spread by:

  • Mosquitoes, ticks, or other insects
  • Saliva, tears, or sweat that is not mixed with the blood of an HIV-positive person
  • Hugging, shaking hands, sharing toilets, sharing dishes, or closed-mouth or "social" kissing with someone who is HIV-positive
  • Other sexual activities that don't involve the exchange of body fluids (for example, touching)

Testing

The only way to know if you have HIV is to get tested. A healthcare provider can take a blood sample or a swab of the inside of your mouth to test for HIV. Depending on the type of test, you could find out results in 20 minutes (Rapid HIV Test) or in a few days. Talk to your healthcare provider to find out which test is best for you. 

If you are trying to get pregnant, talk to your healthcare provider about getting tested for HIV and sexually transmitted infections (STIs). Pregnant people should get tested for HIV during each pregnancy, preferably at the first prenatal visit. The earlier HIV is diagnosed and treated, the more effective HIV medicine (ART) can be at preventing transmission and improving the health outcomes of both the pregnant person and their baby.


Find free or low cost and confidential testing available at clinics throughout Boston and more information on HIV by clicking the button below.

Learn More

Treatment

Treatment

Yes. With modern medication, known as ART (Antiretroviral therapy), HIV is a manageable condition, and people with HIV live long, healthy lives. ART is recommended for everyone with HIV, and is available at low or no cost, regardless of insurance. Talk to your healthcare provider or find one through many of Boston’s services.

When a person with HIV takes their medicine as prescribed every day, the virus becomes so low in their body that it can’t be found by a blood test. This low level is called undetectable”. When the virus is undetectable, HIV can’t be passed to others during sex. This is called “untransmittable”.

Getting to and keeping an undetectable viral load is the best thing a person with HIV can do to stay healthy.

Symptoms

Many people with HIV do not have any symptoms until many years after infection. The following may be warning signs of advanced HIV infection:

  • Rapid weight loss, dry cough, recurring fever, or severe night sweats
  • Profound and unexplained fatigue, swollen lymph glands in the armpits, groin, or neck
  • Diarrhea that lasts for more than a week
  • White spots or unusual marks on the tongue, the mouth, or the throat
  • Memory loss, depression, and other neurological problems

Frequently Asked Questions

Frequently Asked Questions

There are different stages with HIV infection: Acute HIV Infection, Chronic HIV Infection, and AIDS.  

  1. Acute Infection
    • This phase takes place 2-4 weeks after initial infection with the virus.
    • The majority of people infected develop a flu-like illness (fever, muscle aches, rash, joint pain).
    • Symptoms may be mild enough to go unnoticed, but the virus is multiplying and spreading throughout the body during this time.
    • The ability to spread HIV is highest at this stage because the amount of virus in the blood is very high.
  2. Chronic HIV Infection
    • This stage can last for years.
    • There are limited symptoms associated with this stage of HIV infection. Many individuals can live without symptoms for many years.
    • During this phase the virus is present in the body but is not attacking the immune system. However, treatment during this phase is important.
    • Individuals can still spread the virus during this stage.
  3. AIDS (Acquired Immunodeficiency Syndrome)
    • This stage usually occurs years after initial infection with HIV.
    • A person has AIDS when their immune response is very weak and they have lost the ability to fight off infections.
    • Symptoms associated with this stage can vary greatly.
    • Many medicines are available to treat AIDS.
    • It is important to note that a person can transmit HIV to others during any of these stages.
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