University of Arizona

What you'll study

The programme combines advanced coursework with laboratory research to build a strong grounding in microbial physiology, pathogenesis and immune system function. Core topics typically include microbial genetics and physiology, bacterial and viral pathogenesis, innate and adaptive immunity, host–microbe interactions, and modern molecular and cellular methods used in microbiology and immunology laboratories.

Students normally take a mix of lecture courses, laboratory rotations or practica, and seminar modules. Typical module examples are:

• Microbial Physiology and Genetics
• Bacterial and Viral Pathogenesis
• Cellular and Molecular Immunology
• Techniques in Molecular Biology and Microbial Genomics
• Host–Pathogen Interaction and Disease Mechanisms
• Bioinformatics for Microbial and Immunological Data
• Advanced Microscopy and Imaging Methods
• Responsible Conduct of Research and Scientific Communication

The degree emphasises practical skills: experimental design, aseptic technique, cell culture, flow cytometry, next‑generation sequencing preparation and analysis, ELISA and other immunoassays. Students undertake a significant independent research project under faculty supervision; programmes commonly allow thesis (research) or project/practicum tracks to meet degree requirements.

Entry requirements

Applicants are expected to hold a bachelor’s degree in biology, microbiology, immunology, molecular biology or a closely related life sciences discipline. Competitive applicants normally demonstrate strong academic performance in core undergraduate science courses such as genetics, biochemistry, cell biology and microbiology.

Typical application components include:

• Official academic transcripts
• A statement of purpose outlining research interests and career goals
• Curriculum vitae or résumé
• Letters of recommendation from academic or research supervisors
• Evidence of laboratory experience or research training is strongly recommended

Standardised tests such as the GRE may be optional or waived depending on department policy; international applicants must provide proof of English language proficiency in line with university requirements. Applicants are encouraged to review the department’s specific admissions guidance and contact potential faculty supervisors about available research projects.

Career prospects

Graduates are prepared for a range of career paths across academia, healthcare, industry and public service. Common directions include:

• Continuing in research: entry to PhD programmes or post‑baccalaureate research roles
• Biotechnology and pharmaceutical industry positions in research and development, process development, or quality control
• Clinical and diagnostic laboratories (with additional certification as required for clinical roles)
• Public health and infectious disease surveillance roles at local, state or national agencies
• Regulatory affairs, scientific consulting, technology transfer or science policy
• Science communication, education and outreach roles

The programme’s emphasis on hands‑on technical training, data analysis and scientific communication helps graduates transition into laboratory scientist positions and provides a solid foundation for those aiming for doctoral training or leadership roles in life‑science organisations.

Why study at University of Arizona

The University of Arizona offers an interdisciplinary research environment with strengths in microbial pathogenesis, immunology, microbiome science and infectious disease. Students benefit from access to core facilities and specialised instrumentation, collaborative centres that bridge basic and translational research, and opportunities to work with faculty active in federally funded and industry‑supported research programmes.

Located within a university that integrates medical, biological and engineering disciplines, the programme provides networking opportunities across departments and research institutes. Students gain mentorship from experienced investigators, participate in departmental seminars and journal clubs, and can pursue collaborative projects that align with academic and applied career goals.