Approximately 22,600 people in the UK do not know they have the HIV virus according to the Health Protection Agency.
The Government's Chief Medical Officer hopes to reduce this number by lifting the ban on a home HIV test.
Dame Sally Davies denied this was a cost-saving move and wanted to encourage more people to get tested for the disease.
She said: "This is about allowing people who don't want to go to a clinic unless they might have it, checking themselves."
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