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Nucleic-acid-based tests amplify and detect one or more of several target sequences located in specific HIV genes, such as HIV-I GAG, HIV-II GAG, HIV-env, or the HIV-pol. [32] [33] Since these tests are relatively expensive, the blood is screened by first pooling some 8–24 samples and testing these together; if the pool tests positive, each ...
It progresses rapidly, usually causing death within months of diagnosis. [25] HIV-associated dementia (HAD) is a metabolic encephalopathy induced by HIV infection and fueled by immune activation of HIV-infected brain macrophages and microglia. These cells are productively infected by HIV and secrete neurotoxins of both host and viral origin. [26]
HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells. It directly and indirectly destroys CD4 + T cells. [88] HIV is a member of the genus Lentivirus, [89] part of the family Retroviridae. [90] Lentiviruses share many morphological and biological characteristics.
In honor of National Black HIV/AIDS Awareness Day, Marvelyn Brown shares her story on becoming HIV positive and what she wants people to know about the virus.
More than 800 people living with undiagnosed HIV and hepatitis have been identified in just six months following the rollout of routine testing in A&E, according to NHS England.
been diagnosed with Hodgkin's disease, non-Hodgkin's lymphoma, lymphocytic leukemia, multiple myeloma, or any cancer of lymphoreticular or histiocytic tissue, or angioimmunoblastic lymphoadenopathy; or been diagnosed with a genetic immunodeficiency syndrome atypical of HIV infection, such as one involving hypogammaglobulinemia.
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