A new aggressive strain of HIV develops more rapidly into AIDS than other current strains.
From first infection with HIV to developing AIDS can be as short as 5 years - the shortest known for HIV-1 types - say the researchers.
The new strain is a "recombinant" virus - a cross of two viruses that meet in an infected person.
There are over 60 different epidemic strains of HIV-1 in the world.
However, if two strains infect the same person, they can combine to form a cross between the two - known as a recombinant.
The researchers report their findings in the Journal of Infectious Diseases.
http://www.medicalnewstoday.com/articles/269510.php
