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Photo of Dr. Trish Perl-Delisle

Trish Marie Perl-Delisle, M.D., M.Sc.

Senior Epidemiologist, Johns Hopkins Health System
Professor of Medicine

Female  | Languages: English, French

Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Senior Epidemiologist, Johns Hopkins Health System
  • Professor of Medicine
  • Associate Professor of Pathology

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 410-955-1725

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-502-9617
Fax: 410-502-7144


Infectious Disease, Infectious Diseases


Dr. Trish M. Perl is a professor of medicine at the Johns Hopkins University School of Medicine. She holds joint appointments in pathology and epidemiology at the School of Medicine as well as in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health

Her main health interests are influenza and pandemic influenza planning, including patient and health care worker safety.

Renowned for her innovation and research in infections and resistant organisms, Dr. Perl has raised the bar for The Johns Hopkins Hospital's Infection Control and Prevention Program. She started the Department of Hospital Epidemiology and Infection Control at the Johns Hopkins Hospital website, helping to promote the group’s role in educating the community.

Dr. Perl is the recipient of the SHEA (Society for Healthcare Epidemiology of America) Young Investigator and Mentor Award. In 2006, she was nominated as the first woman president of SHEA. In addition, she has been a principle researcher for the Centers for Disease Control and Prevention on health care associated with infections.

She also served on the editorial board of the American Journal of Infection Control and is a reviewer for Infection Control & Hospital Epidemiology, JAMA and the New England Journal of Medicine. Dr. Perl has written or collaborated over 200 peer-reviewed articles.

Dr. Perl received her B.A. and medical degree from University of North Carolina at Chapel Hill and master’s in science from McGill University in Montreal, Canada for epidemiology and biostatistics. She completed a residency in internal medicine at McGill University and a fellowship in infectious diseases and clinical epidemiology at the University of Iowa in Iowa City, Iowa. more

Featured Video

Epidemiologist Trish Perl Answers Questions About Screening for Ebola

    Additional Information

  • Education +


    • University of North Carolina School of Medicine / MD (1983)


    • McGill University School of Medicine / Internal Medicine (1986)


    • Royal Victoria Hospital / Internal Medicine (1987)
    • Laboratory Center For Disease Control / Epidemiology (1988)
    • University of Iowa Hospitals and Clinics / Infectious Diseases (1991)


    • American Board of Internal Medicine / Internal Medicine (1986)
  • Research & Publications +

    Research Summary

    Dr. Perl has extensive research experience in the field of health care-associated infections and resistant and epidemiologically significant organisms. She is recognized globally for her innovation and research in the field and the use of research knowledge in the health care setting.

    She has served as a principal and co-principal investigator on multiple studies funded by the Centers for Disease Control and Prevention and the Veteran’s Affairs Administration during her career.

    Selected Publications

    Pada S, Perl TM. "Operating room myths: what is the evidence for common practices." Curr Opin Infect Dis. 2015 Aug;28(4):369-74. doi: 10.1097/QCO.0000000000000177.

    Al-Tawfiq JA, Perl TM. "Middle East respiratory syndrome coronavirus in healthcare settings." Curr Opin Infect Dis. 2015 Aug;28(4):392-6. doi: 10.1097/QCO.0000000000000178.

    Perl TM, Price CS. "Orchestrated scientific collaboration: critical to the control of MERS-CoV." Ann Intern Med. 2015 Aug 18;163(4):313-4. doi: 10.7326/M15-1395.

    Branch-Elliman W, Savor Price C, McGeer A, Perl TM. "Protecting the frontline: designing an infection prevention platform for preventing emerging respiratory viral illnesses in healthcare personnel." Infect Control Hosp Epidemiol. 2015 Mar;36(3):336-45. doi: 10.1017/ice.2014.52.

    Reich NG, Cummings DA, Lauer SA, Zorn M, Robinson C, Nyquist AC, Price CS, Simberkoff M, Radonovich LJ, Perl TM. "Triggering interventions for influenza: the ALERT algorithm." Clin Infect Dis. 2015 Feb 15;60(4):499-504. doi: 10.1093/cid/ciu749. Epub 2014 Nov 19.

  • Academic Affiliations & Courses +

    Courses and Syllabi

    Healthcare Epidemiology (340.641.01)
    (With Aaron Milstone, M.D.)

  • Activities & Honors +


    • Young Investigator and Mentor Award, Society for Healthcare Epidemiology of America, 2000
    • Visiting Professor, Courage Fund, 2008 - 2010

    Professional Activities

    • President, Society of Healthcare Epidemiology of America, 2006
  • Videos & Media +
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