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HIV

1,465 bytes added, 09:41, 11 November 2018
Created page with "==Key Stage 4== ===Meaning=== HIV is short for '''Human Immunodeficiency Virus''' and is a virus which causes AIDS. ===About HIV=== : HIV [[infection|infects]..."
==Key Stage 4==
===Meaning===
[[HIV]] is short for '''Human Immunodeficiency Virus''' and is a [[virus]] which causes [[AIDS]].

===About HIV===
: [[HIV]] [[infection|infects]] [[White Blood Cell|white blood cells]] causing the [[Immune System|immune system]] to become weak.
: [[HIV]] attaches to [[White Blood Cell|white blood cells]] and injects its [[RNA]] into the [[Cell (Biology)|cell]]. The [[virus]] then makes millions of copies of itself before bursting out of, and killing, the [[Cell (Biology)|cell]].
: Initially [[HIV]] has few symptoms and may feel like a cold. After time the [[HIV]] lays dormant and unnoticed. This can be for many years. Eventually [[HIV]] has destroyed enough [[White Blood Cell|white blood cells]] to cause [[AIDS]] which is short for Acquired Immune Deficiency Syndrome.
: People with [[AIDS]] may die of a secondary [[infection]] because their [[Immune System|immune system]] has been weakened by the [[HIV]].
: [[HIV]] is spread by body fluids. This can be through [[intercourse]] or [[blood]] being passed from one individual to another, in many cases by a used needle.
: [[HIV]] can be treated with [[antiretroviral]] [[drug]]s but their effectiveness depends on how soon after [[infection]] they are taken. Immediately after infection they can prevent [[HIV]] from taking hold. Too long after [[infection]] and they will only slow the progress of the [[virus]] giving the person a longer time before the develop [[AIDS]].