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  2. WHO Disease Staging System for HIV Infection and Disease in ...

    en.wikipedia.org/wiki/WHO_Disease_Staging_System...

    Following infection with HIV, the rate of clinical disease progression varies enormously between individuals. Many factors such as host susceptibility and immune function, [2] [3] [4] health care and co-infections, [5] [6] [7] as well as factors relating to the viral strain [8] [9] may affect the rate of clinical disease progression.

  3. CDC classification system for HIV infection - Wikipedia

    en.wikipedia.org/wiki/CDC_Classification_System...

    The CDC Classification System for HIV Infection is the medical classification system used by the United States Centers for Disease Control and Prevention (CDC) to classify HIV disease and infection. [1] The system is used to allow the government to handle epidemic statistics and define who receives US government assistance.

  4. Diagnosis of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_HIV/AIDS

    The very high negative predictive value of these tests is why the CDC recommends that a negative test result be considered conclusive evidence that an individual does not have HIV. [citation needed] Of course, the actual numbers vary depending on the testing population.

  5. Long-term nonprogressor - Wikipedia

    en.wikipedia.org/wiki/Long-term_nonprogressor

    Long-term nonprogressors (LTNPs), are individuals infected with HIV, who maintain a CD4 count greater than 500 without antiretroviral therapy with a detectable viral load. [1] Many of these patients have been HIV positive for 30 years without progressing to the point of needing to take medication in order not to develop AIDS.

  6. AIDS-defining clinical condition - Wikipedia

    en.wikipedia.org/wiki/AIDS-defining_clinical...

    AIDS-defining clinical conditions (also known as AIDS-defining illnesses or AIDS-defining diseases) is the list of diseases published by the Centers for Disease Control and Prevention (CDC) that are associated with AIDS and used worldwide as a guideline for AIDS diagnosis.

  7. Signs and symptoms of HIV/AIDS - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of_HIV/AIDS

    A strong immune defense reduces the number of viral particles in the bloodstream, marking the start of secondary or chronic HIV infection. The secondary stage of HIV infection can vary between two weeks and 10 years. During the secondary phase of infection, HIV is active within lymph nodes, which typically become persistently swollen, in ...

  8. Viral load monitoring for HIV - Wikipedia

    en.wikipedia.org/wiki/Viral_load_monitoring_for_HIV

    An HIV antibody test usually detects the HIV antibodies within two to eight weeks, but can have a valid negative result for a long as 2 to 6 months after initial infection. Viral load tests can also be used to diagnose HIV infection, especially in children under 18 months born to mothers with HIV, where the presence of maternal antibodies ...

  9. Asymptomatic carrier - Wikipedia

    en.wikipedia.org/wiki/Asymptomatic_carrier

    "Healthy carriers" never exhibit signs or symptoms of the disease, yet are capable of infecting others, and are often considered to be the "classic" asymptomatic carriers. [5] While the mechanism of disease carrying is still unknown, researchers have made progress towards understanding how certain pathogens can remain dormant in a human for a ...

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