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Glossary - WHO Western Pacific Region
Glossary - WHO Western Pacific Region

... the ability of the virus to multiply in number or spread from cell to cell. The antiviral drugs most commonly used as treatment for Pandemic (H1N1) 2009, are oseltamivir (Tamiflu®) and zanamivir (Relenza ®). Asymptomatic: When a person with an illness does not display symptoms. Carrier: A bearer and ...
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Vaccinations - Griffith Animal Hospital PC
Vaccinations - Griffith Animal Hospital PC

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Bloodborne Pathogens for School Employees: The Straight Facts
Bloodborne Pathogens for School Employees: The Straight Facts

... • Hepatitis B (HBV) • Hepatitis C (HCV) • Human Immunodeficiency Virus (HIV) ...
Public Health Branch Business Planning 07/08 – Workshop 2
Public Health Branch Business Planning 07/08 – Workshop 2

... • DHS procedures – Guidelines for the management in Victoria of people living with HIV who put others at risk 2006 – 2009 • Five guiding principles – Transmission of HIV is preventable through behaviour change – Each person accepts responsibility for preventing herself becoming infected, and for pre ...
TAKS Review - Bowie Academic Chemistry Resources
TAKS Review - Bowie Academic Chemistry Resources

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Enter Topic Title in each section above
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Sexually Transmitted Infections
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Diapositiva 1 - Laboratorio de Genómica Viral y Humana

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Prescott`s Microbiology, 9th Edition 38 Human Diseases Caused by
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... virus; also can be transmitted via breast milk 4. Virus targets CD4+ cells such as T-helper cells, macrophages, dendritic cells, and monocytes 5. After penetration and uncoating, the RNA is copied into DNA by reverse transcriptase; the DNA provirus then is integrated into the host cell chromosome 6. ...
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1 Immune system and CD4 count - HIV i-Base

... 5. Give another name for a CD4 and for a CD8 cell CD4 cell: helper cell, a CD4+ T-lymphocyte, CD4+ T-cell, and sometimes just T4 cell. CD8 cell: killer cell. 6. What is a CD4% and when is it used? CD4% is the percentage of total lymphocytes that are CD4 cells. It is used as a more stable indication ...
Viruses - MrBuntainSpace
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Challenges of modeling the HIV epidemic in the United
Challenges of modeling the HIV epidemic in the United

... possible events in absence of vaccination, with varying probability of occuring (excluding ageing which is not stochastic and migration) An event vector corresponding to the probabilities of the 1792 events is constructed. For example, the infection event of susceptible individual of age a, sex k, r ...
DOC - Stonetrust
DOC - Stonetrust

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(Macroparasites and microparasites)edited [Recovered]
(Macroparasites and microparasites)edited [Recovered]

... • Microparasites: viruses and bacteria. Human diseases: influenza, HIV/AIDS and tuberculosis. • Viral structure and replication. Antigenicity. • RNA retroviruses and reverse transcriptase. ...
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HIV



The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype. Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.HIV infects vital cells in the human immune system such as helper T cells (specifically CD4+ T cells), macrophages, and dendritic cells. HIV infection leads to low levels of CD4+ T cells through a number of mechanisms, including apoptosis of uninfected bystander cells, direct viral killing of infected cells, and killing of infected CD4+ T cells by CD8 cytotoxic lymphocytes that recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunity is lost, and the body becomes progressively more susceptible to opportunistic infections.
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