In this issue:

  • A new generation of T-cell assays comes to vaccine trials
  • Gates Foundation Pledges "Challenge Grant" to IAVI
  • Phase I DNA Vaccine Trial Begins in Nairobi
  • Letter from the Editor
  • Nigeria Workshop Builds Consensus on HIV Vaccine Action Plan
  • Perspectives on AIDS Vaccines
  • Cohorts, Communities and HIV Vaccines: On the Ground in Africa
  • Vaccine Briefs