Molecular Microbiology PhD Program FAQs

The MMB program combines rigorous scientific training with a collaborative and supportive community. Students benefit from individualized mentorship, structured laboratory rotations, NIH-supported training opportunities, and access to diverse research areas within microbiology and infectious disease biology.

Students can pursue research in areas including bacterial pathogenesis, infectious diseases, microbial genetics, virology, immunology, and host-pathogen interactions. Faculty research spans both basic and translational science, allowing students to explore fundamental biological mechanisms and their applications to human health.

The program maintains approximately 39 students and typically enrolls six to seven new PhD students each year. This small cohort size creates opportunities for personalized mentorship, strong peer relationships, and close interaction with faculty.

Students have access to approximately 20 active research faculty members, with additional faculty expected to join the program in the future. Faculty represent a broad range of expertise across microbiology, infectious diseases, and related biomedical sciences.

Students may pursue one of three pathways:

• Traditional Molecular Microbiology Track
• MERGE-ID (Medically-Oriented Research and Graduate Education in Infectious Diseases) Track
• Molecular Genetics Track

Each pathway shares a common scientific foundation while offering specialized opportunities aligned with students' research interests. More information is available below under Specialized Learning Opportunities.

The program offers opportunities in both basic and translational research. Students can investigate fundamental biological questions while also exploring how scientific discoveries can advance the prevention, diagnosis, and treatment of infectious diseases.

Core coursework includes:

• Biochemistry
• Molecular Genetics and Microbiology
• Advanced Topics in Microbiology
• Virology and Host-Pathogen Interactions
• Research Ethics

Students also participate in seminars, journal clubs, research presentations, and other professional development activities.

Unlike many doctoral programs, the Molecular Microbiology PhD program does not require extensive teaching assistantships. Students complete a focused teaching experience that typically lasts one to two months and involves facilitating small-group learning sessions in medical school courses.

Yes. Students interested in teaching can pursue paid teaching assistant positions, participate in medical school instruction, teach through partner institutions, or mentor junior researchers.

Students receive mentorship from faculty advisors, thesis mentors, thesis advisory committees, and peers throughout the program. The program emphasizes individualized support and helping students achieve both their scientific and professional goals.

All first-year students complete three laboratory rotations before selecting a thesis laboratory. Rotations give students the opportunity to explore different research topics, laboratory environments, and mentoring styles before committing to a dissertation project.

Students rank their preferred laboratories before each rotation. Program leadership works closely with faculty to accommodate student interests and provide opportunities to explore research areas that align with their goals.

No. Students are expected to complete all three rotations before joining a thesis laboratory. This approach helps students make well-informed decisions about their dissertation research and ensures equitable opportunities for all students.

Students typically select and join their thesis laboratory by March of their first year.

Laboratory rotations allow students to explore different scientific questions, experience multiple mentoring styles, build relationships with faculty and peers, and identify the research environment that best supports their interests and career goals.

Beginning in their second year, students participate in an annual Research Report Series, presenting their research findings to faculty, fellow students, and postdoctoral researchers. These presentations help students develop scientific communication skills while receiving feedback on their work.

Yes. Students participate in departmental seminar series featuring external speakers and student-led journal clubs that focus on current scientific literature and emerging discoveries in microbiology and infectious disease research.

Yes. Students complete a qualifying examination modeled after an NIH F31 predoctoral fellowship proposal and participate in grant-writing workshops designed to strengthen proposal development and scientific writing skills.

The MERGE-ID (Medically-Oriented Research and Graduate Education in Infectious Diseases) Track provides additional training for students interested in understanding the clinical implications of infectious disease research. Students participate in clinical experiences and work alongside physicians to see how scientific discoveries can inform patient care.

No. The track is designed to help students understand the connection between research and medicine, but it does not provide clinical training or prepare students for clinical practice.

The Molecular Genetics Track provides additional training for students whose research interests focus on genetics. Students typically enter the track after joining a thesis laboratory and refining their research direction.

Yes. Both the MERGE-ID and Molecular Genetics tracks are supported by NIH-funded training grants, providing additional educational and professional development resources for students.

Competitive applicants demonstrate strong research experience, scientific curiosity, critical thinking skills, and an understanding of the research process. The admissions committee values applicants who can explain their research contributions and articulate why they are interested in the Molecular Microbiology Program specifically.

Yes. Applicants from a variety of scientific disciplines, including chemistry, engineering, biochemistry, immunology, and neuroscience, are encouraged to apply. Research experience and scientific potential are more important than having a specific undergraduate major.

Yes. Applicants should explain why the program aligns with their interests and identify faculty whose research is relevant to their goals. This helps the admissions committee assess fit and connect applicants with faculty during the admissions process.

Yes. Students may apply to multiple GSBS programs if their research interests span multiple disciplines. Applicants should clearly explain their interest in each program they select.

Yes. International students are encouraged to apply, and the program typically enrolls one to two international students in each incoming cohort.

Selected applicants participate in interviews with faculty members, opportunities to meet current students, and activities designed to showcase the program's research environment and culture. The interview process helps applicants and faculty assess mutual fit.

Faculty are interested in understanding an applicant's research experiences, scientific interests, critical thinking abilities, and motivation for pursuing doctoral training in molecular microbiology.

Graduates pursue careers across academia, biotechnology, pharmaceuticals, postdoctoral research, science policy, science communication, consulting, technology transfer, education, and research administration.

Yes. Faculty actively support students exploring a variety of career paths and help connect students with alumni and professionals working in research-adjacent fields.

Boston is a global hub for biotechnology, biomedical research, healthcare, and pharmaceutical innovation. Students benefit from proximity to leading academic medical centers, research institutions, and life sciences companies, creating abundant opportunities for collaboration and career development.

Faculty mentors and thesis advisory committees work closely with students to identify career interests, develop professional skills, and connect with alumni and networking opportunities that align with their goals. The program emphasizes helping students pursue careers that are meaningful to them, both within and beyond the laboratory.