- The first stage of HIV is called acute HIV and causes flu-like symptoms like fever, chills, and fatigue.
- During stage two of HIV, symptoms subside and you may even start to feel better.
- In the last stage of HIV, called AIDS, the immune system becomes severely damaged and the body has trouble defending itself against infections.
- Visit Insider’s Health Reference library for more advice.
HIV (human immunodeficiency virus) presents in three stages. It starts with flu-like symptoms and can progress to severely damage your immune system if left untreated.
Here’s what you should know about the stages and symptoms of HIV and how to navigate testing and treatment.
Stage 1: Acute HIV
The first stage of HIV is the acute infection stage. It is mostly characterized by flu-like symptoms. However, not everyone will experience these symptoms and some HIV tests may even come up negative.
Most people experience these flu-like symptoms about two to six weeks after they have been infected. These symptoms are a sign that your immune system is fighting the virus and usually last about one to two weeks.
Some of the symptoms you may experience are:
“Some of the most common early signs of HIV are a high fever, a rash on your upper body, fatigue, sore throat, severe headache, and muscle weakness,” says Peter Gulick, MD, a professor of medicine at Michigan State University (MSU), College of Osteopathic Medicine, and Director of the MSU HIV and Hepatitis Clinic.
It’s especially important to get tested at this stage of HIV because your viral load is very high, meaning that you are highly infectious and could easily infect someone else with the disease unknowingly.
Stage 2: Asymptomatic infection
This stage comes after the acute infection stage and is commonly called the clinical latency, chronic, or asymptomatic infection stage. At this stage of HIV, most of the earlier symptoms of the condition fade, and a person might start to feel better.
This stage can last for up to 10 years or even longer. But even though a person might not be showing symptoms at this stage, the virus is still active and spreading.
At this stage of the virus, a blood test will be able to indicate how active the virus is and how much of an effect it’s having on your immune system. A person at this stage is also infectious. If the condition goes untreated, it will continue to progress, damaging the immune system.
Stage 3: AIDS
At this stage, the virus develops into Acquired Immunodeficiency Syndrome (AIDS). When a person has AIDS, their immune system is critically damaged. This is the most severe stage of HIV.
A person with HIV at this stage is also very susceptible to infections and diseases. The body will be unable to defend itself against opportunistic infections, including viral infections like shingles and bacterial infections like tuberculosis and pneumonia.
People who have AIDS have a very high viral load of the virus and are very infectious. At this stage without treatment, the condition can be fatal and could cause death. Most people with AIDS are likely to only survive for 1 to 3 years if they have no access to proper treatment.
Some common symptoms of AIDS include:
- Recurring cough
- Weight loss
- Mouth sores
- Chronic diarrhea
- Extreme fatigue
- Swollen lymph nodes
Testing and next steps
If you are experiencing early signs of HIV or suspect you’ve been exposed to someone with the condition, getting tested is the next step.
“If you notice any early signs of HIV or have been exposed to a person who has it, get tested immediately. If you test negative but continue to engage in high-risk activities like unprotected sex, then you should get tested every three to six months,” says Gulick.
You can get an HIV test at any of the following places:
- Private clinics
- Sexual health clinics
- Charity clinics
- Family planning clinics
- Community health centers
If you test positive for HIV, you should know that with proper management and treatment, the virus can be kept well under control and you can live a long and healthy life. If you are unsure of what test you should be taking, speak to your doctor first for a recommendation.
HIV medication helps to reduce the viral load in your body, or the amount of HIV in your blood. HIV medicines work by blocking or changing the enzymes the virus uses to replicate itself.
Some of the treatment options approved by the FDA for HIV include:
- Protease inhibitors: These block the protease enzyme, which the virus can use to copy itself. Some examples include Lexiva, Norvir, and Reyataz.
- Non-nucleoside reverse transcriptase inhibitors (NNRTIs): These alter the reverse transcriptase enzyme, which HIV needs to replicate itself. Some examples include Edurant, Sustiva, and Viramune.
- Nucleoside reverse transcriptase inhibitors (NRTIs): These block — instead of alter — the reverse transcriptase enzyme. Some examples include Epivir, Retrovir, and Ziagen.
- Fusion inhibitors: Fusion inhibitors work by blocking the virus from entering your cells. The most commonly available type is Fuzeon.
- Integrase inhibitors: These block the integrase enzyme, which stops the virus from replicating itself.
- Attachment inhibitors: Attachment inhibitors work by binding to the protein on the surface of the HIV. This prevents HIV from entering the cells.
There’s currently no cure for HIV, but with the proper treatment and medication, the condition can be well-managed. People who have HIV and get adequate treatment and medication are capable of living long and healthy lives.
Keeping an eye out for the first signs of HIV if you suspect you’ve been infected, and testing as early as possible, will help you to manage the condition better. It’s also important to take your HIV medication regularly to prevent the condition from progressing.
“Taking medication for HIV is a lifelong therapy. Stopping your HIV medication will cause the disease to start to progress again,” Gulick says.