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When a person is infected with HIV, the immune system tries to destroy the virus. In order to halt those attacks, HIV undergoes millions of genetic mutations a day. In most cases, this tactic of systematically out manoeuvring the bodies defense system enables HIV to defeat the immune system.

However Researchers who created the first map of human resistance used a supercomputer to analyze immune system-triggered mutations in the genomes of a variety of strains of HIV from more than 1,000 patients.

Their findings revealed  in some people "The virus survives but replicates more slowly, and thus its capacity for destruction is in some sense neutralized," study co-author Jacques Fellay, of the Swiss Federal Institute of Technology in Lausanne, said in an institute news release.

This HIV Geneticist say their achievement could lead to improved treatments for the virus, which causes .