Immunization Committee

Reports to:

Board of Regents


Advise the ACP Board of Regents and its committees and councils on adult immunization policy, including payment for vaccines and vaccine administration services, education, especially of new vaccines for adults, and incorporation of immunization services in practice.

Composition (7)

Chair, who is a physician; Vice Chair, who is a Governor; five members (requests for specific types of members will be considered at the time of appointment). The Vice Chair position may be filled by a non-Governor if the Chair is a Governor.

In addition, the Committee shall have a permanent, non-voting guest position for a representative from the Centers for Disease Control and Prevention (CDC).


Chair, Vice Chair, and members serve one-year terms renewable up to three times for a total of four years, unless extended by the Chair, Board of Regents.

2024-25 Members

Vidya Sundareshan, MD, MPH, FACP, FIDSA, Chair (Governor)
Professor and Chief, Infectious Diseases
Southern Illinois University School of Medicine
Springfield, IL
Specialties: Infectious Diseases, Internal Medicine

Robert H. Hopkins, Jr., MD, MACP, FAAP, Vice Chair
Professor of Internal Medicine and Pediatrics
Chief, Division of General Internal Medicine
UAMS College of Medicine
Little Rock, AR
Specialty: Internal Medicine

Colleen Christmas, MD, FACP (Governor)
Director, Primary Care Leadership Track
Associate Professor of Medicine
Johns Hopkins School of Medicine
Baltimore, MD
Specialty: Internal Medicine

Saba A. Hasan, MD, MACP (Regent)
Program Director, Internal Medicine Residency
Capital Health
Warminster, PA
Specialty: Internal Medicine

Alfonso Iorio, MD, PhD, FACP
Professor and Chair, Department of Health Research Methods, Evidence, and Impact (HEI)
McMaster University
Hamilton, ON
Specialty: Internal Medicine

Alysa Krain MD, MSc
Associate Professor, Divisions of Geriatrics and Infectious Diseases
Perelman School of Medicine
University of Pennsylvania
Philadelphia, PA
Specialties: Internal Medicine and Infectious Diseases

Yekatherine Rasmussen, MD
Family Medicine Specialist
Adventhealth Orlando
Orlando, FL
Specialty: Internal Medicine

Jason M. Goldman, MD, FACP (President-elect/ACIP liaison)
President, Jason M. Goldman Private Practice
Coral Springs, FL
Specialty: Internal Medicine, Other

Staff Liaison: Amir Qaseem,

To contact any of these individuals, please consult the Member Directory (members only) or request assistance from