HIV vs AIDS: The Similarities and Differences Everyone Should Understand
What are HIV and AIDS? Why are they not the same?
🟠 What is HIV? (The Virus)
HIV (Human Immunodeficiency Virus) is the name of a virus that enters the body with the primary goal of destroying a type of white blood cell called CD4 (or T-cells), which is the most critical part of the body’s immune system.
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Impact: As the HIV virus multiplies, it destroys CD4 cells, causing the number of these cells to constantly decrease. This results in the body’s immune system becoming weak and unable to fight off various pathogens normally.
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Status: Being infected with HIV does not always mean having AIDS. People who receive the diagnosis early and adhere to antiretroviral treatment can control the viral load to a very low (Undetectable) level, maintain good health, and live a long life comparable to a person without the virus.
🟡 What is AIDS? (The Syndrome)
AIDS (Acquired Immune Deficiency Syndrome) is a group of symptoms of immune deficiency, considered the final stage of an HIV infection that has not been treated or has been treated inconsistently, leading to severe body weakness.
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Diagnosing AIDS: An individual with HIV infection is classified as having AIDS when one of the following conditions occurs:
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The CD4 white blood cell count drops below 200 cells/cubic millimeter.
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The development of severe Opportunistic Infections due to the complete destruction of the immune system, such as pulmonary/extrapulmonary tuberculosis, PJP pneumonia, fungal infections in the brain/gastrointestinal tract, and certain types of cancer, etc.
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Summary of Key Differences Between HIV vs AIDS
HIV (Human Immunodeficiency Virus)
- Status: A virus that destroys the immune system
- Relationship: It is the cause of AIDS
- Treatment: Controllable with Antiretroviral Therapy (ART)
AIDS (Acquired Immune Deficiency Syndrome)
- Status: A syndrome/condition of severe immune deficiency
- Relationship: It is the result/final stage of an untreated HIV infection
- Treatment: It is a condition that requires treating complications (Opportunistic Infections) along with HIV treatment
U=U (Undetectable = Untransmittable): Hope and Life with HIV
Currently, medical science has advanced significantly, and there is evidence supporting the concept of U=U (Undetectable = Untransmittable), which means:
“If a person with HIV consistently takes antiretroviral medication until the viral load is undetectable in the bloodstream (Undetectable Viral Load), they cannot sexually transmit HIV to their partner (Untransmittable).”
Therefore, people living with HIV who receive proper treatment can live a normal and healthy life, have a good quality of life, do not have to worry about transmission, and do not necessarily have to develop AIDS.
Transmission and Prevention Methods
🔵 Primary Routes of “Transmission”
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Unprotected sexual intercourse (not using condoms)
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Sharing needles or drug injection equipment
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Receiving blood that has not been screened for the virus
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From an infected mother to the fetus during pregnancy, childbirth, or through breastfeeding
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🟣 Routes Where “Transmission” Does Not Occur
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General physical contact such as shaking hands, hugging, or light kissing
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Sharing restrooms, swimming pools, or drinking glasses/utensils
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Saliva, tears, or sweat (unless there is a large open wound)
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Mosquito or insect bites
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References
- HIV Causes and Symptoms: How it differs from AIDS | Samitivej chinatown
- Know and Understand: HIV vs AIDS – What’s the Difference? | King Chulalongkorn Memorial Hospital
- AIDS (HIV/AIDS): Causes, Symptoms, and Treatment | MedPark Hospital
- How are HIV and AIDS different? Know the facts to avoid misunderstanding | Chaophya Hospital
