Trends in HIV/AIDS and Injection Drug Use in Portugal

"Taking only 2011, from the notified cases of HIV diagnosed at 31/12/2011, the cases associated to drug addiction represented 10% of the total diagnosed cases in the different stadiums of the infection: 17% of the AIDS cases, 8% Symptomatic Non-AIDS and 6% of the asymptomatic carriers cases.
"There has been a downward trend in last years on the weight of drug addicts, in the total number of cases diagnosed each year with HIV infection (10%, 14%, 15%, 20% and 22%, of the cases diagnosed in 2011, 2010, 2009, 2008, 2007), as in the cases diagnosed each year with AIDS (17%, 25%, 25%, 28% and 31% of the cases diagnosed in 2011, 2010, 2009, 2008, 2007). In addition to the decreasing trend of these proportions, it is worth of notice the continuous decrease over the past few years in the number of new cases diagnosed with HIV associated with drug addiction, safeguarding the future update of data (95 cases diagnosed in 2011, 254 in 2009, 423 in 2007 and 636 in 2005)."