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HIV: Symptoms, Testing and Treatment in Boston

Updated · Sources are cited in the text

HIV: Symptoms, Testing and Treatment in Boston

This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

HIV is one of the most studied viruses in medicine. Over four decades, research has changed it from a condition with few options into one that clinicians manage with daily medicine. This guide explains how the virus works, what research suggests about symptoms, testing and treatment, and where to get tested in Boston at little or no cost.

It is written for anyone, of any gender or orientation, who wants clear information without judgment. A test is the only way to know your HIV status. This page explains how that works.

The short version

  • HIV (human immunodeficiency virus) attacks immune cells called CD4 T cells. Many people have no symptoms for years.
  • Symptoms cannot confirm or rule out HIV. Only a test can.
  • The CDC recommends a fourth-generation antigen/antibody test from a blood draw when possible. Window periods depend on the test type.
  • HIV is not curable, but it is treatable. The CDC says people who take HIV medicine as prescribed and reach an undetectable viral load cannot sexually transmit HIV (this is called U=U).
  • In Boston, several clinics offer free or sliding-scale HIV testing, and some take walk-ins.

The science: what HIV is made of and what it does

The rest of this page covers the biology of the virus, what research has observed, how safe the tests and medicines are, and how to judge the quality of a testing source.

Structure and key components

HIV is a retrovirus. Its genetic material is RNA rather than DNA. The virus is wrapped in an outer envelope studded with proteins. It also carries three enzymes that matter for both testing and treatment: reverse transcriptase, integrase and protease.

The virus enters CD4 T cells, which help coordinate the immune response. Inside the cell, reverse transcriptase copies the viral RNA into DNA. Integrase inserts that DNA into the cell's own DNA. Protease then helps assemble new virus particles. Each step is a target for modern HIV medicine, and each one gives researchers a distinct point to interrupt the virus.

Why tests look for what they look for

Tests detect different parts of this picture. Antibody tests look for the immune system's response to the virus. Antigen tests look for p24, a protein that is part of the virus itself. Nucleic acid tests (NATs) look for the virus's genetic material. The CDC describes each of these in its HIV testing guidance. Which one is used affects how early an infection can be detected.

Research observations on the immune system

Research suggests that without treatment, HIV gradually reduces CD4 T cell counts. The CDC describes untreated infection as able to progress to stage 3 HIV, sometimes called AIDS. Research also suggests that starting treatment early helps the immune system stay stronger. The CDC says people who start HIV medicine early and take it as prescribed can live long, healthy lives.

HIV can hide in resting cells in the body. Researchers describe these as reservoirs. This is one reason current medicines control the virus but do not remove it entirely.

HIV symptoms: acute and chronic infection

The CDC describes HIV infection in stages. Symptoms vary a great deal, and many people have none.

Acute infection

According to the CDC, some people have a flu-like illness about 2 to 4 weeks after infection. This is called acute HIV infection. Symptoms the CDC lists include:

  • fever and chills
  • rash
  • night sweats
  • muscle aches
  • sore throat
  • fatigue
  • swollen lymph nodes
  • mouth ulcers

These symptoms look like many ordinary illnesses. They can last a few days to several weeks. The CDC also notes that some people have no symptoms at all in this stage. Having these symptoms does not mean someone has HIV, and not having them does not mean someone does not. Only a test can answer that.

During acute infection, the amount of virus in the blood is very high, and the CDC notes that HIV is easier to pass on during this time. This is one reason testing after a possible exposure matters.

Chronic infection

The CDC describes the next stage as chronic HIV infection, sometimes called clinical latency. The virus keeps reproducing at low levels. Many people feel fine, and some have no symptoms for a decade or longer. Without treatment, the CDC says the infection can eventually move to stage 3.

Because there may be no signs, public health guidance relies on testing rather than symptoms. The CDC recommends that everyone ages 13 to 64 get tested for HIV at least once as part of routine health care. The U.S. Preventive Services Task Force (USPSTF) similarly recommends screening for adolescents and adults ages 15 to 65, and for younger adolescents and older adults at increased risk. People with ongoing exposure may be advised by a clinician to test more often.

HIV testing: what the CDC recommends

The fourth-generation antigen/antibody test

The CDC recommends a laboratory antigen/antibody test as the standard starting point. This is often called a fourth-generation test. It looks for both HIV antibodies and the p24 antigen. Because it detects the antigen as well as the antibody response, it can find an infection earlier than an antibody-only test.

Window periods, from the CDC

The window period is the time between a possible exposure and when a test can reliably detect HIV. The CDC gives these approximate ranges:

Test typeCDC window period
Nucleic acid test (NAT)10 to 33 days after exposure
Antigen/antibody lab test (blood from a vein)18 to 45 days after exposure
Antigen/antibody rapid test (fingerstick)18 to 90 days after exposure
Antibody test23 to 90 days after exposure

The CDC says that if you test within the window period for the test you used, you may be advised to test again later to be sure. A clinician or testing counselor can tell you which test fits your situation and when to repeat it. If you think you were exposed in the past 72 hours, ask about PEP right away (see below) rather than waiting for a test.

Why rapid and same-day tests may need a lab follow-up

Rapid tests give a result in minutes, often from a fingerstick or oral swab. They are useful because people get results in one visit. Research on testing programs suggests that fast results help more people learn their status.

The CDC explains that a reactive (preliminary positive) rapid test needs a follow-up lab test to confirm it. This is built into the CDC testing approach. It is not a sign that the first result was careless. A negative result from a rapid test may also need a repeat test if it was taken during the window period.

The CDC's testing approach for a reactive screening result is a follow-up differentiation test and, if needed, a nucleic acid test. Your clinician or counselor will explain what happens next for the specific test they use.

For a deeper look at free and rapid testing options in the city, see free and rapid HIV testing in Boston.

Is HIV curable? Treatment as a manageable condition

HIV is not curable. The CDC states that there is currently no effective cure, but that HIV is treatable with medicine. This page uses the word "manageable" because, with treatment, many people live long lives with a stable, controlled infection.

What clinicians prescribe

HIV treatment is called antiretroviral therapy, or ART. It is prescribed by a clinician, who chooses a regimen based on a person's health, other medicines and preferences. This page does not cover doses or schedules. Those decisions belong to the prescribing clinician.

Medicines in current regimens act on the steps described earlier, such as reverse transcriptase, integrase and protease. Research suggests that combining medicines from different classes controls the virus better than a single one.

Viral load and U=U

The goal of treatment, according to the CDC, is to reduce the amount of HIV in the blood to a level that tests cannot detect. This is called an undetectable viral load. The CDC says that people who take HIV medicine as prescribed and get and keep an undetectable viral load have effectively no risk of passing HIV to a sexual partner. This is known as U=U, or Undetectable = Untransmittable.

U=U applies to sex. It depends on taking medicine as prescribed and on regular viral load checks with a clinician. The CDC also notes that other transmission routes, such as from pregnancy or breastfeeding, involve different guidance that a clinician can explain.

Starting care

The CDC recommends starting treatment as soon as possible after diagnosis. If a test is reactive, a clinic can connect you with care. Several Boston clinics listed below offer both testing and treatment.

Prevention: PrEP and PEP

Two medical prevention options are available through a clinician.

  • PrEP (pre-exposure prophylaxis) is for people who do not have HIV and want to lower their chance of getting it. The CDC says PrEP reduces the risk of getting HIV from sex by about 99 percent when taken as prescribed.
  • PEP (post-exposure prophylaxis) is emergency medicine started after a possible exposure. The CDC says it must be started within 72 hours.

We cover access, costs and who PrEP is for on a separate page: PrEP in Boston. Several of the clinics below list PrEP and PEP among their services.

Safety profile and considerations

Safety of testing

HIV tests are routine and low risk. A blood draw can cause brief discomfort or a small bruise. A fingerstick or oral swab is quicker. No test is perfect, which is why the CDC describes window periods and confirmatory steps.

Safety of treatment and who should talk to a clinician

HIV medicines, like all medicines, can have side effects and can interact with other medicines or supplements. Research suggests that most people tolerate modern regimens well, but individual experiences vary. People who are pregnant or planning pregnancy, who have kidney or liver conditions, or who take other prescriptions should tell their clinician. The clinician weighs these factors when choosing a regimen. Never stop or change HIV medicine without speaking to the prescribing clinician.

Confidentiality and consent in Massachusetts

Under M.G.L. c. 111, s. 119, the Massachusetts Legislature makes venereal disease reports and records non-public, with disclosure only on a judicial order or to officials whose duties entitle them. Reporting rules for HIV specifically are not set out in the statutes we reviewed, so ask the clinic or the Boston Public Health Commission how results are handled.

For young people, M.G.L. c. 112, s. 12F says a minor who reasonably believes they are at risk of exposure due to sexual activity may consent to care to diagnose or treat the disease, or for HIV prevention if sexually active, without a parent's consent. The City of Boston tells people 13 or older they can get a confidential STI test without parental permission. The law has limits. For example, the provider must notify a parent or guardian if the minor's life or limb is seriously endangered.

Sourcing and quality indicators: finding reliable testing in Boston

For a health test, "sourcing" means choosing a trustworthy place to get it. Signs of a reliable source include:

  • It is a clinic, health center or health department program, not an anonymous seller.
  • It follows CDC testing guidance, including follow-up testing when a result needs confirmation.
  • It connects you to care, PrEP or PEP when you need them.
  • It is clear about cost, insurance and confidentiality.
  • It is listed in a public directory such as the CDC's GetTested tool.

Information on this page does not endorse any product or kit. Use a clinic or the CDC directory.

Free and low-cost HIV testing in Boston

The following details come from each clinic's own pages or the CDC GetTested directory. Hours and services can change, so call before you go. You can also see the local testing list at our Boston clinic list.

Boston STD Clinic (Boston Medical Center)

Address: 725 Albany St., 9th Floor, Suite 9C (BMC Shapiro Center), Boston, MA 02118. Phone: 617-414-2803.

The clinic's page describes free routine testing for HIV, chlamydia, gonorrhea, syphilis and hepatitis C, with cost assistance for people without insurance. PrEP, PEP and treatment are listed. Appointments are made by phone or MyChart for established patients. The page does not say whether walk-ins are accepted. Listed hours are Monday, Wednesday and Friday 9 a.m. to 4 p.m., and Tuesday and Thursday 9 a.m. to 7 p.m. The page is not consistent about Tuesday, so confirm by phone.

Fenway Health Sexual Health Clinic

Address: Ansin Building, 1340 Boylston Street, 4th floor, Boston, MA 02215. Phone: 617-267-0159 (main line 617-267-0900).

Fenway's page lists walk-in testing, first come, first served: Tuesday 1 to 7 p.m., Wednesday and Thursday 3 to 7 p.m., and Friday 9 a.m. to 12 p.m. Monday 9 a.m. to 4 p.m. is by appointment only. Check-in closes 30 minutes before the end time. Results take 3 to 5 business days. Services include HIV testing, PrEP, PEP, doxy-PEP and treatment.

The clinic bills insurance if you have it. Quest Labs bills insurance directly, and the patient is responsible for Quest charges. Uninsured patients can be seen free through grant funding. The page does not mention a sliding scale. It describes the clinic as open to gay, bisexual and other men who have sex with men, transgender and gender diverse people, and their partners. Call to ask whether it is the right fit for you.

X-Clinic at Codman Square Health Center

Address: 637 Washington St., Dorchester, MA 02124. Phone: 617-822-8350.

Codman lists STD and HIV testing, rapid HIV testing, PrEP, PEP and treatment. Express visits, for people with no symptoms and no known exposure, are walk-in during operating hours. Telehealth and appointments are also offered. The clinic accepts all insurance, uses a sliding fee schedule, and offers testing and treatment regardless of citizenship status. Teen testing is confidential. Codman's two pages list different schedules, so call to confirm hours. Coverage help is available at 617-822-8162.

TrueCare@MAC testing (Multicultural AIDS Coalition)

Address: 9 Palmer Street, Roxbury, MA 02119. Phone: 617-442-1622.

The Multicultural AIDS Coalition lists free STD, HIV and hepatitis C testing. An appointment is optional. Listed hours are Monday, Tuesday, Thursday and Friday 10 a.m. to 5 p.m. (testing 10:30 to 4), Wednesday 12 to 7 p.m. (testing 12:30 to 6), and Saturday 11 a.m. to 4 p.m. (testing 11:30 to 3). Sunday is not listed.

Other options listed in the CDC GetTested directory

  • Boston Public Health Commission, 774 Albany St, Boston, MA 02118, 617-534-3976. The CDC listing shows free HIV, hepatitis C, chlamydia, gonorrhea and syphilis testing. The listing does not give hours or confirm walk-ins.
  • Planned Parenthood League of Massachusetts, Greater Boston Health Center, 1055 Commonwealth Ave, Boston, MA 02215, 617-295-7235. The directory lists an appointment requirement, a sliding scale and acceptance of insurance, Medicaid and Medicare. Rapid HIV testing and PrEP are listed.
  • DotHouse Health, 1353 Dorchester Avenue, Dorchester, MA 02122, 617-288-3230. The directory lists sliding-scale fees, Medicaid and Medicare, rapid HIV testing and PrEP navigation, with services in English, Portuguese and Spanish. Check by phone whether walk-in testing is available.

For questions or referrals, the City of Boston's Mayor's Health Line (617-534-5050) offers free, confidential, multilingual health information and referral. The Boston Public Health Commission's Infectious Disease Bureau can be reached at 617-534-5395. The City's Getting Tested for STIs page has more information.

The Boston Public Health Commission's pages we reviewed do not list current city HIV diagnosis rates, so check with the commission for local figures.

Testing for more than HIV

Many clinics offer HIV testing alongside tests for other infections. Chlamydia, for example, is common and often has no symptoms. It is curable with treatment from a clinician. Learn more in our guide to chlamydia symptoms, testing and treatment in Boston. For a broader overview of where to go and what it may cost, see STD testing in Boston.

What to do next

  1. Choose a clinic above or use the CDC's GetTested directory. Call to confirm hours and cost.
  2. Ask which test is used and whether a repeat is advised, given the date of any possible exposure.
  3. If an exposure was in the past 72 hours, ask about PEP right away.
  4. Ask about PrEP if you want ongoing prevention.
  5. If a result is reactive, ask the clinic about follow-up testing and starting care.

Getting tested is a routine health step. Boston has several places where it can be free or low cost.

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