The work, which took four years to complete, was started in 2012 and compared certain patients with HIV in Africa with those in Europe from 1998 to 2015.
Kazi hiyo iliyochukua miaka minne kukamilika, ilianzishwa mwaka 2012 na kulinganisha wagonjwa fulani wenye VVU barani Afrika na wale wa Ulaya kutoka 1998 hadi 2015.