HIV/AIDS

« Back to Glossary Index

Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS) are significant global health issues that have impacted millions of lives since the early 1980s. While medical advancements have transformed HIV from a fatal diagnosis into a manageable chronic condition, stigma, and misinformation continue to challenge prevention and treatment efforts.

Understanding HIV/AIDS

What is HIV?

HIV is a virus that targets the immune system, specifically the CD4 cells (T cells), which are crucial for fighting infections. Unlike other viruses, the human body cannot completely rid itself of HIV, making it a lifelong condition. When left untreated, HIV reduces the number of CD4 cells in the body, weakening the immune system and making the individual more susceptible to infections and certain cancers.

Transmission

HIV is transmitted through contact with certain body fluids of an infected person, including:

  • Blood
  • Semen (including pre-seminal fluid)
  • Vaginal fluids
  • Rectal fluids
  • Breast milk

The most common ways HIV is spread include:

  • Unprotected sexual contact with an infected person
  • Sharing needles or syringes with someone who has HIV
  • Receiving contaminated blood products or organ transplants (though rigorous screening has significantly reduced this risk)
  • From mother to child during pregnancy, childbirth, or breastfeeding

Symptoms and Progression

The progression of HIV can be divided into three stages:

  1. Acute HIV Infection: This initial stage occurs within 2-4 weeks after infection, characterized by flu-like symptoms such as fever, rash, and swollen lymph nodes. During this phase, the virus multiplies rapidly, and the person is highly contagious.
  2. Chronic HIV Infection: Also known as the asymptomatic or clinical latency stage, this phase can last for several years. The virus continues to replicate at low levels, and the individual may not show symptoms. However, without treatment, the virus will eventually weaken the immune system.
  3. AIDS: This is the most severe phase of HIV infection. It is diagnosed when the number of CD4 cells falls below 200 cells per cubic millimeter of blood, or when the individual develops certain opportunistic infections or cancers. Without treatment, people with AIDS typically survive about three years.

Diagnosis and Treatment

Early diagnosis of HIV is crucial for managing the condition and preventing its progression to AIDS. HIV can be detected through various tests, including:

  • Antibody tests: These tests look for antibodies to HIV in blood or oral fluids. Most rapid and home tests fall into this category.
  • Antigen/antibody tests: These can detect both HIV antibodies and antigens (a part of the virus itself) in the blood.
  • Nucleic acid tests (NATs): These look for the virus in the blood and can detect HIV sooner than antibody tests.

There is no cure for HIV, but antiretroviral therapy (ART) can effectively control the virus. ART involves taking a combination of HIV medicines every day, which helps reduce the viral load to undetectable levels, preventing the progression to AIDS and reducing the risk of transmission to others.

Prevention

Preventing HIV involves a combination of strategies:

  • Condom use: Consistently using condoms during sex significantly reduces the risk of HIV transmission.
  • Pre-exposure prophylaxis (PrEP): This daily medication can prevent HIV in people at high risk.
  • Post-exposure prophylaxis (PEP): This treatment must be started within 72 hours after potential exposure to HIV and involves taking HIV medicines for 28 days.
  • Regular testing: Regular HIV testing ensures early detection and timely treatment.
  • Education and awareness: Increasing awareness and understanding of HIV can reduce stigma and promote healthier behaviors.

Living with HIV/AIDS

With proper medical care, many people with HIV live long and healthy lives. However, stigma and discrimination remain significant barriers. Support from healthcare providers, counselors, and support groups can help individuals cope with the emotional and social aspects of the condition.

« Back to Glossary Index

Related Medical Device Reviews

Hepatitis

Hepatitis is a medical condition characterized by inflammation of the liver. The liver is a vital organ responsible for various essential functions, including detoxifying harmful

Read More »

Hemorrhoids

Hemorrhoids, also known as piles, are swollen veins located around the anus or in the lower rectum. They are a common issue that affects millions

Read More »

“Educate yourself. Be Prepared. Avoid Stress”.

Patient9 helps you choose which medical device is best for you.

Welcome to Patient9 medical device review – recommended website for patients. With specific information and tools created for patients and caregivers, you can get educated, reduce stress, and learn what to expect.

Scroll to Top