
Molecular Microbiology and Immunology
We are advancing our understanding of disease biology and using this knowledge to solve enormous public health problems.
Master's Programs Application Deadline: June 1 for August start date
learn about our mmi programs and how to applyFACULTYALUMNI Spotlight
Molecular Microbiology and Immunology Headlines


The Science and Soul of Public Health
Seven stories centered on moments small and big from journeys in lifesaving.

Frontline Research, Real Progress
From job sites to city streets, courtrooms to EHRs, five stories show public health’s reach and impact.
What We Do in the Department of Molecular Microbiology and Immunology
The mission of MMI is to advance fundamental knowledge of human pathogens, host-microbe interactions and arthropod vectors, develop interventions to improve public health, and train scientists to conduct rigorous, ethical research while embracing diversity, inclusion and the unique experiences of all department members.
We believe in the power of scientific discovery. Our diverse research programs and committed faculty offer students unparalleled opportunities in the laboratory, in the clinic, and in the field.
Molecular Microbiology and Immunology Highlights
First in Immunology
Founded in 1916, ours was the first immunology department in the U.S.
Flexible curriculum
Lab Science at Work
We have 24 working laboratories
Education

Molecular Microbiology and Immunology Programs
Master of Health Science (MHS)
The 9-month MHS program includes a core curriculum focused on the biology, immunology, and transmission dynamics of major infectious diseases related to public health.
Master of Science (ScM)
The 2-year ScM program gives students an understanding of infectious diseases guided by research experience in the laboratory or field.
Doctor of Philosophy (PhD)
The 5-year PhD program allows students to focus on the cellular and molecular mechanisms that drive infectious and immune diseases, the opportunity to take courses focused on a specific research area, and to benefit from lab rotations, mentored research, and professional development.
Centers and Institutes in the Department of Molecular Microbiology and Immunology
We host six centers and institutes that advance our research initiatives.
Johns Hopkins Malaria Research Institute
Johns Hopkins Center for Women's Health, Sex, and Gender Research
Johns Hopkins Center of Excellence for Influenza Research and Response (JH CEIRR)
Lyme and Tickborne Diseases Research and Education Institute
Multicenter AIDS Cohort Study
R³ Center for Innovation in Science Education (R3ISE)
Our faculty and collaborators work in state-of-the-art facilities
Monica Mugnier, PhD
studies how African trypanosomes, which cause African sleeping sickness, evade the immune system.

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Philanthropic gifts enable the pursuit of important research that cannot be supported by federal funding and also support student and faculty fellowships.