title: The epidemiology of HIV among young people in sub-Saharan Africa: know your local epidemic and its implications for prevention.
abstract: BACKGROUND
  Broad patterns of HIV epidemiology are frequently used to design generic HIV programs in sub-Saharan Africa.
  
  
  METHODS
  We reviewed the epidemiology of HIV among young people in sub-Saharan Africa, and explored the unique dynamics of infection in its different regions.
  
  
  RESULTS
  In 2009, HIV prevalence among youth in sub-Saharan Africa was an estimated 1.4% in males and 3.4% in females, but these values mask wide variation at regional and national levels. Within countries there are further major differences in HIV prevalence, such as by sex, urban/rural location, economic status, education, or ethnic group. Within this highly nuanced context, HIV prevention programs targeting youth must consider both where new infections are occurring and where they are coming from.
  
  
  CONCLUSIONS
  Given the epidemiology, one-size-fits-all HIV prevention programs are usually inappropriate at regional and national levels. Consideration of local context and risk associated with life transitions, such as leaving school or getting married, is imperative to successful programming for young people.
authors.affiliation: Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK. sue.mavedzenge@lshtm.ac.uk
authors.forename: Sue
authors.initials: S
authors.lastname: Napierala Mavedzenge
authors.forename: Rick
authors.initials: R
authors.lastname: Olson
authors.forename: Aoife M
authors.initials: AM
authors.lastname: Doyle
authors.forename: John
authors.initials: J
authors.lastname: Changalucha
authors.forename: David A
authors.initials: DA
authors.lastname: Ross
mesh_terms: D000293:Adolescent; D017954:Africa South of the Sahara / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control*; D006801:Humans; D008297:Male; D055815:Young Adult