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- W3207416423 abstract "Background: More than 25 million people in developing countries are living with HIV infection. An enormous global effort is now underway to bring antiretroviral treatment to at least 2.5 million of those infected. While drug prices have dropped considerably, the cost and technical complexity of laboratory tests essential for the management of HIV disease, such as CD4 cell counts, remain prohibitive. New, simple, and affordable methods for measuring CD4 cells that can be implemented in resource-scarce settings are urgently needed [5, 6]. Methods and Findings: Here we describe the development of a prototype for a simple, rapid, and affordable method for counting CD4 lymphocytes. Microliter volumes of blood without further sample preparation are stained with fluorescent antibodies, captured on a membrane within a minimized flow cell and imaged through microscope optics with the type of charge-coupled device developed for digital camera technology [10]. An associated computer algorithm converts the raw digital image into absolute CD4 counts and CD4 percentages in real time. The accuracy of this prototype system was validated through testing in the United States and Botswana, and showed close agreement with standard flow cytometry (r = 0.95) over a range of absolute CD4 counts, and the ability to discriminate clinically relevant CD4 count thresholds with high sensitivity and specificity [1,4]" @default.
- W3207416423 created "2021-10-25" @default.
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- W3207416423 date "2021-10-30" @default.
- W3207416423 modified "2023-10-16" @default.
- W3207416423 title "Cd4 T-Lynphocyte count associated with patient infected with Typei &Typeii HIV attending Malali clinic and maternity, Kaduna Kaduna - Nigeria" @default.
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- W3207416423 doi "https://doi.org/10.30574/gscbps.2021.17.1.0282" @default.
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