HIV, its transmission, disease progression, and prevention methods.
HIV (Human Immunodeficiency Virus) attacks the body's immune system. It spreads through unprotected sex, sharing needles, contact with infected blood, and from mother to baby during childbirth.
Once infected, HIV progresses through stages based on CD4 T-cell counts. Symptoms may include swollen glands and flu-like symptoms. Without treatment, the virus weakens the immune system, leading to AIDS.
To prevent HIV, individuals can practice safe sex, avoid sharing needles, and get tested regularly. Early diagnosis and treatment with antiretroviral medications are crucial.
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