University of California

What you'll study

The PhD is an original research degree that combines advanced disciplinary training with sustained independent research. Students select a research topic within hygiene and tropical medicine—examples include malaria, neglected tropical diseases, emerging viral infections, antimicrobial resistance, epidemiology of parasitic infections, vaccine development, vector biology and implementation science for disease control.

Coursework and training are tailored to support the research project and typically include modules in:

• Advanced infectious disease biology — pathogen-host interactions, molecular parasitology and immunology.
• Epidemiology and biostatistics — study design, statistical methods for infectious disease data, spatial analysis and modelling.
• Field methods and implementation science — surveillance, trial design, community engagement and operational research in resource-limited settings.
• Clinical and translational research — diagnostics, vaccine evaluation, clinical trials methodology and regulatory considerations.
• Ethics, policy and global health systems — research ethics in vulnerable populations, health policy analysis and economics of disease control programmes.

Students spend the majority of their time conducting a supervised research project that leads to a doctoral thesis. Training often includes laboratory rotations, practicum placements with public health partners, opportunities for fieldwork in endemic settings, and participation in seminars, journal clubs and international conferences.

Entry requirements

Prospective students should hold a relevant postgraduate degree (such as an MD, MSc or equivalent) or a first degree with substantial research experience in a relevant discipline (biology, epidemiology, public health, medicine, veterinary science or related fields). Successful applicants typically demonstrate:

• Strong academic record at undergraduate and/or master’s level.
• Research experience — evidence of prior laboratory, clinical or field-based research; publications or technical reports are advantageous.
• Clear research proposal or statement of research interests that aligns with potential supervisors’ expertise.
• References — academic and/or professional referees who can attest to research potential.
• Language proficiency — where English is not the first language, applicants must demonstrate competency through recognised qualifications or prior instruction in English.

Selection is competitive and based on scholarly promise, fit with supervisory expertise, and the feasibility and public health relevance of the proposed research. Some applicants may be invited for an interview or asked to discuss their proposal with potential supervisors.

Career prospects

Graduates of a PhD in Medicine with a focus on Hygiene & Tropical Medicine pursue careers across academia, public health and industry. Typical career paths include:

• Academic research and teaching — university faculty positions leading independent research groups in infectious disease biology, epidemiology or global health.
• Public health agencies and international organisations — roles in disease surveillance, programme design and policy at national ministries of health, the World Health Organization and regional public health bodies.
• Non-governmental organisations and implementation partners — positions managing field programmes, monitoring and evaluation, and operational research in endemic settings.
• Pharmaceutical and biotech sectors — research and development, clinical trial leadership, diagnostics and vaccine development.
• Consultancy and policy advisory — specialist advisors on infectious disease control, health systems strengthening and emergency response.

Doctoral training also develops transferable skills in project management, grant writing, statistical analysis and science communication that are valuable across sectors.

Why study at University of California

The University of California system hosts world-leading biomedical and public health research, with campuses that offer complementary strengths in basic science, clinical medicine and global health implementation. Students benefit from interdisciplinary collaboration across departments and affiliated medical centres, ready access to state-of-the-art laboratories and biocontainment facilities, and established partnerships with public health agencies and field sites globally.

PhD candidates can draw on mentorship from faculty who lead large, multidisciplinary research programmes in infectious disease and tropical medicine, access training resources in epidemiology, biostatistics and clinical trials, and participate in translational initiatives that move discoveries from bench to field. The university’s emphasis on collaborative, impact-oriented research provides an environment well suited to those aiming to influence disease control policy and practice worldwide.