Local control of repeated-dose rectal challenges in DNA/MVA-vaccinated macaques protected against a first series of simian immunodeficiency virus challenges

J Virol. 2014 May;88(10):5864-9. doi: 10.1128/JVI.00145-14. Epub 2014 Feb 26.

Abstract

Here, we report the results of a late boost and three additional series of simian immunodeficiency virus (SIV) challenges in seven DNA/modified vaccinia virus Ankara (MVA)-vaccinated rhesus macaques who resisted a first series of rectal challenges. During 29 additional challenges delivered over 2.3 years, all animals became infected. However, 13 blips of virus in six macaques and anamnestic Env-specific rectal IgA responses in three of the six suggested that local control of infections was occurring during the serial challenge.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Drug Carriers
  • Immunity, Mucosal*
  • Macaca mulatta
  • Rectum / immunology*
  • SAIDS Vaccines / administration & dosage
  • SAIDS Vaccines / immunology*
  • Simian Acquired Immunodeficiency Syndrome / prevention & control*
  • Simian Immunodeficiency Virus / immunology*
  • Vaccines, DNA / administration & dosage
  • Vaccines, DNA / immunology*
  • Vaccines, Synthetic / administration & dosage
  • Vaccines, Synthetic / immunology
  • Vaccinia virus / genetics

Substances

  • Drug Carriers
  • SAIDS Vaccines
  • Vaccines, DNA
  • Vaccines, Synthetic