Effects of HIV infection

HIV (Human Immunodeficiency Virus) is a virus that attacks the body's immune system, specifically the CD4 cells (T cells), which are important for fighting infections. Over time, if not treated, HIV can lead to Acquired Immunodeficiency Syndrome (AIDS), where the immune system becomes severely weakened and is unable to fight off infections and diseases.

HIV is primarily spread through:

1. Unprotected sexual contact
2. Sharing needles or syringes
3. Blood transfusions (though rare due to screening)
4. From mother to child during childbirth or breastfeeding

There is currently no cure for HIV, but with proper treatment, people with HIV can live long and healthy lives. The most common treatment is antiretroviral therapy (ART), which involves taking a combination of HIV medicines that prevent the virus from multiplying.

Effects of HIV infection

1. Weakening of the Immune System
   • HIV attacks and destroys CD4 T-cells, which are essential for fighting infections.
   • This makes the body more vulnerable to infections and diseases, reducing overall immunity.
2. Increased Risk of Opportunistic Infections
   • A weakened immune system allows diseases like tuberculosis, pneumonia, chronic malaria, and meningitis to thrive.
   • These infections can become life-threatening if untreated.
3. Physical Deterioration
   • HIV can lead to symptoms such as rapid weight loss, persistent fever, night sweats, chronic diarrhea, and skin rashes.
   • Over time, it causes general body weakness and poor health.
4. Emotional and Psychological Impact
   • Many people with HIV experience depression, anxiety, and stress due to stigma, fear, or the burden of living with the disease.
5. Progression to AIDS
   • Without treatment, HIV progresses to AIDS, the final stage, where the immune system is severely damaged.
   • This stage is characterized by severe opportunistic infections and certain cancers, leading to higher mortality rates.