Medicine and surgery notes

Apr 24th, 2015
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Epidemiology and Pathophysiology ofHIV/AIDS and MTCT of HIVDr E. WereJuly 25, 2005Session ObjectivesDescribe the clinical features and diagnosis of HIV/AIDSin pregnancy Describe the epidemiology of HIV in pregnant women inSub-Saharan Africa and Kenya Describe the modes of transmission from an HIV positivepregnant woman to her infant Describe the risk factors for MTCT of HIV Describe the effects of pregnancy on HIV/AIDS and theeffects of HIV/AIDS on pregnancyHIV / AIDSHIV human immunodeficiency virus- causesAIDSTwo types HIV1 and HIV 2 HIV 2 is less virulent HIV 1 has many subtypesImmune system is the bodys defense againstinfection, cancers and foreign objects (name someexamples) Chief immune system cell attacked by HIV is theT lymphocyte or CD4 cell CD4 cells are important in protection frominfectionsFrom HIV infection to AIDSHIV accesses the body through T lymphocytes orCD4 cells The virus blends itself with the host cells geneticmaterial through the process of reversetranscription The viral genetic material hijacks the host cell forces it to produce more viral genetic material The viral material is packaged into more virus andthe host system collapses and the cell diesreleasing more viral particles Soon, more CD4 cells are recruited as slaves to thevirus and few are available for core business ofdefense => AIDSAIDSAIDS Acquired Immune Deficiency Synd

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