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HIV
HIV, or Human Immunodeficiency Virus, is a virus that attacks the body's immune system. If left untreated, it can lead to AIDS (Acquired Immunodeficiency Syndrome), which is a chronic, potentially life-threatening condition.
Here are some key points about HIV:
Transmission : HIV is primarily spread through unprotected sex, sharing needles, and from mother to child during pregnancy, childbirth, or breastfeeding.
Symptoms : Early symptoms can include flu-like symptoms such as fever, headache, and muscle aches. As the virus progresses, it weakens the immune system, making the person more susceptible to infections and diseases.
Treatment : While there is no cure for HIV, antiretroviral therapy (ART) can control the virus and help people live long, healthy lives. ART reduces the viral load in the body to undetectable levels, meaning the virus cannot be transmitted to others.
Prevention : Using condoms during sex, not sharing needles, and taking pre-exposure prophylaxis (PrEP) can significantly reduce the risk of HIV infection.
This is for informational purposes only. For medical advice or diagnosis, consult a professional.
HIV stands for Human Immunodeficiency Virus. It is a virus that attacks the body's immune system, specifically targeting CD4+ T cells, which are crucial for fighting off infections. Over time, HIV can weaken the immune system to the point where it can no longer effectively combat opportunistic infections and certain cancers, leading to a condition called AIDS (Acquired Immunodeficiency Syndrome).
HIV is primarily transmitted through:
Unprotected sexual contact (anal, vaginal, or oral)
Sharing needles or syringes for injecting drugs
Transmission from an infected mother to her child during pregnancy, childbirth, or breastfeeding
There is no cure for HIV, but with early diagnosis and effective antiretroviral therapy (ART), people living with HIV can manage the virus and live long, healthy lives. ART suppresses the virus, preventing it from replicating and damaging the immune system further.
Here are some key facts about HIV:
Anyone can get HIV, regardless of sexual orientation, gender identity, or background.
Early diagnosis and treatment are essential for preventing complications and living a healthy life with HIV.
People living with HIV who are on effective ART and have an undetectable viral load cannot transmit the virus to others through sexual contact.
There are several ways to prevent HIV transmission, including consistent condom use, PrEP (pre-exposure prophylaxis), and getting tested regularly.
HIV (Human Immunodeficiency Virus) is a virus that attacks the body's immune system, specifically the CD4 cells (T cells), which help the immune system fight off infections. If left untreated, HIV can lead to AIDS (Acquired Immunodeficiency Syndrome), which is the final stage of HIV infection. While there is no cure for HIV, it can be managed with proper treatment.
Key Points About HIV:
Transmission:
HIV is spread through contact with certain body fluids: blood, semen, vaginal fluids, rectal fluids, and breast milk.
Common ways it is transmitted include unprotected sexual contact, sharing needles, and from mother to child during pregnancy, childbirth, or breastfeeding.
HIV is not transmitted through casual contact, such as hugging, kissing, or sharing food or drinks.
Symptoms:
Early stages of HIV may cause flu-like symptoms, often referred to as acute retroviral syndrome (ARS) or primary HIV infection. This usually occurs 2-4 weeks after exposure and can include fever, headache, rash, swollen lymph nodes, sore throat, and diarrhea.
Many people may not experience symptoms for years, even as the virus continues to damage the immune system.
Progression:
Without treatment, HIV can weaken the immune system over time, leading to AIDS. This occurs when the CD4 count drops below a critical level, leaving the body vulnerable to opportunistic infections and certain cancers.
With effective treatment, people with HIV can live long, healthy lives. Antiretroviral therapy (ART), which involves taking a combination of HIV medicines, can significantly lower the viral load (amount of virus in the blood) and help prevent the progression to AIDS.
Prevention:
PrEP (Pre-Exposure Prophylaxis): A medication taken by HIV-negative individuals to reduce the risk of getting HIV.
Condoms: Using condoms during sexual activity can significantly reduce the risk of transmission.
Needle exchange programs: Reducing the sharing of needles among people who inject drugs.
Treatment as Prevention (TasP): People with HIV who take ART and achieve an undetectable viral load can reduce the risk of transmitting the virus to others to undetectable = untransmittable (U=U).
Stigma:
People living with HIV often face stigma and discrimination, which can discourage them from seeking care and support. Stigma may be based on misconceptions about how HIV is transmitted, or prejudice against certain groups such as men who have sex with men, people who inject drugs, or sex workers.
Reducing stigma and promoting education about HIV is essential to improving public health and ensuring that people with HIV feel empowered to seek treatment and support.
Importance of Early Diagnosis and Treatment:
Early testing and diagnosis of HIV are important because early initiation of ART can help prevent the development of AIDS and allow people with HIV to live healthier, longer lives. Regular monitoring of viral load and CD4 count helps to manage treatment effectively.
If you or someone you know is at risk for HIV or is living with HIV, it is important to seek medical advice, get tested regularly, and adhere to prescribed treatment plans to maintain good health and prevent transmission.
The human immunodeficiency viruses (HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype. In most cases, HIV is a sexually transmitted infection and occurs by contact with or transfer of blood, pre-ejaculate, semen, and vaginal fluids. Research has shown (for both same-sex and opposite-sex couples) that HIV is untransmittable through condomless sexual intercourse if the HIV-positive partner has a consistently undetectable viral load. Non-sexual transmission can occur from an infected mother to her infant during pregnancy, during childbirth by exposure to her blood or vaginal fluid, and through breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
HIV infects vital cells in the human immune system, such as helper T cells (specifically CD4+ T cells), macrophages, and dendritic cells. HIV infection leads to low levels of CD4+ T cells through a number of mechanisms, including pyroptosis of abortively infected T cells, apoptosis of uninfected bystander cells, direct viral killing of infected cells, and killing of infected CD4+ T cells by CD8+ cytotoxic lymphocytes that recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunity is lost, and the body becomes progressively more susceptible to opportunistic infections, leading to the development of AIDS. | Wikipedia
La infección por el virus de la inmunodeficiencia humana y el síndrome de inmunodeficiencia adquirida (VIH/sida) son un espectro de enfermedades causadas por la infección provocada por el virus de la inmunodeficiencia humana (VIH). Tras la infección inicial, una persona puede no notar síntoma alguno o bien puede experimentar un periodo breve de cuadro tipo influenza. Típicamente, le sigue un periodo prolongado sin síntomas. A medida que la infección progresa, interfiere más con el sistema inmunitario, aumentando el riesgo de infecciones comunes como la tuberculosis, además de otras infecciones oportunistas y tumores que raramente afectan a las personas con un sistema inmunitario indemne. Estos síntomas tardíos de infección se conocen como sida, etapa que a menudo también está asociada con pérdida de peso.
El VIH se contagia principalmente por sexo desprotegido (incluido sexo anal y oral), transfusiones de sangre contaminada, agujas hipodérmicas y de la madre al niño durante el embarazo, parto o lactancia. Algunos fluidos corporales, como la saliva y las lágrimas, no transmiten el VIH. Entre los métodos de prevención se encuentran el sexo seguro, los programas de intercambio de agujas, el tratamiento a los infectados y la circuncisión. La infección del bebé a menudo puede prevenirse al dar medicación antirretroviral tanto a la madre como el niño. No hay ninguna cura o vacuna; no obstante, el tratamiento antirretroviral puede retrasar el curso de la enfermedad y puede llevar a una expectativa de vida cercana a la normal. Se recomienda iniciar el tratamiento apenas se haga el diagnóstico. Sin tratamiento, el tiempo de vida promedio después de la infección es 11 años. | Wikipedia