Phase 3 Efficacy Trial of Modified Vaccinia Ankara as a Vaccine against Smallpox

Abstract
Many countries have stockpiled vaccines because of concerns about the reemergence of smallpox. Traditional smallpox vaccines are based on replicating vaccinia viruses; these vaccines have considerable side effects.
Funding Information
  • Office of the Assistant Secretary for Preparedness and Response, Biomedical Advanced Research and Development Authority (HHS=100200700034C)