Randomized, Open-label Phase II Trial to Assess the Safety and Immunogenicity of MVA-BN Smallpox Vaccine in Immunocompromised Subjects With HIV Infection

University of Pennsylvania Clinical Trials Unit, Philadelphia

Dupont Circle Physicians Group, Washington D.C.

Infectious Disease Associats of NW Florida Center for Prevention and Treatment of Infections Infectious Diseases Associates of NW FL, Pensacola

Rowan Tree Medical, Wilton Manors

University of Alabama at Birmingham, Birmingham

University of Iowa Departments of Internal Medicine and Microbiology University of Iowa, Iowa City

University of Illinois - Chicago, Chicago

Washington University School of Medicine, St Louis

Health for Life Clinic Little Rock, Little Rock

Quest Clinical Research, San Francisco

Clinical Research Puerto Rico, Inc., San Juan

Fundacion de Investigacion, San Juan