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Public Health 10 min read

How to become an epidemiologist

Fascinated by health, statistics and research? Discover the exciting world of epidemiology.



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Epidemiologists play a vital role within the health sector, working alongside healthcare professionals, researchers, policymakers, charities and community groups.

The role of epidemiology is essential in the realm of public health. It helps reveal the cause and frequency of diseases and health events in human populations. Epidemiologists analyse data, conduct research and implement evidence-based strategies that help save lives, promote health and elevate quality of life.

Australia is renowned for its cutting-edge research facilities and top-notch healthcare system, where aspiring epidemiologists have a thriving environment to excel. With a booming job market and promising growth prospects, the field of epidemiology presents an exciting opportunity to make a tangible impact on public health.

This article explores the world of epidemiology. We discuss the job profile, the skills required, roles and responsibilities, academic requirements and career opportunities. We also shed light on the potential salary and earnings prospects. If you have ever wondered, “what does an epidemiologist do?” you’ll find your questions answered here.

What is epidemiology?

Epidemiology is a field that includes medicine, health sciences, social sciences, statistics and data analysis. It’s the art and science of investigating and understanding the patterns, causes and effects of health events in communities.

From studying infectious outbreaks to examining the impact of lifestyle choices on chronic conditions, epidemiology allows us to peer into the intricate web of health and disease, paving the way for evidence-based interventions and policies that save lives and enhance the quality of life for communities.

What is an epidemiologist?

Epidemiologists study the cause and prevalence of diseases and major health events such as the COVID-19 pandemic. The study and research of illnesses help government officials and health policymakers plan and execute strategies to minimise transmission.

By unveiling disease patterns, epidemiologists hold a pivotal role in public health. These disease detectives analyse data, conduct research and interpret trends to identify risk factors and develop effective prevention strategies.

In collaborating with diverse stakeholders, including healthcare professionals, policymakers and community organisations, epidemiologists forge evidence-based recommendations and policies to curb disease spread and foster healthier communities.

From hospitals to community health centres and government agencies to non-profit organisations, epidemiologists thrive in varied settings, addressing societal health challenges like chronic diseases, infectious outbreaks and health disparities.

What are the roles and responsibilities of an epidemiologist?

Epidemiologists shoulder a wide range of responsibilities in their mission to prevent and control disease, from conducting research and analysing data to advising on public health policies.

Epidemiology jobs involve these key roles and responsibilities: 

  • Research: Designing and implementing epidemiological studies and surveys, collecting information to help unravel disease patterns and causes and employing statistical techniques to interpret epidemiological data, assess interventions and communicate findings through reports and presentations.
  • Surveillance and monitoring: Tracking disease trends, establishing surveillance systems and collaborating with healthcare providers and laboratories to ensure timely reporting.
  • Outbreak investigation: Responding to infectious disease outbreaks, collecting human blood and tissue samples, investigating sources and transmission patterns and implementing control measures.
  • Expert guidance: Advising policymakers, healthcare professionals and community organisations on evidence-based strategies, participating in policy development and promoting health literacy.
  • Collaboration and networking: Engaging with colleagues, health professionals and organisations, attending conferences and fostering partnerships for health initiatives.
  • Public education: Educating the public about ways to preserve and enhance health. High-profile organisations focusing on epidemiology and public health include the World Health Organization and the US-based Centers for Disease Control.

As an epidemiologist, your responsibilities can vary based on your focus area and work environment. Whether you’re tackling infectious diseases, chronic conditions or environmental health, an unwavering dedication to improving public health remains paramount.

Most epidemiologists work standard business hours. Some overtime or irregular hours may be required when dealing with public health emergencies.

How much do epidemiologists earn in Australia?

Considering a career as an epidemiologist? Wondering about the financial rewards? Rest assured, this important profession offers competitive salaries that reflect the expertise and contributions of these public health professionals.

The salary for an epidemiologist in Australia ranges from $70,000 per annum for entry-level positions to $135,000 per annum for senior roles. The average salary is around $110,548 per annum.

Epidemiologist salary

The salary for an epidemiologist in Australia ranges from $105,000 per annum for entry-level positions to $127,703 per annum for senior roles. The average salary is around $114,709 per annum.

The salary for an epidemiologist in Australia ranges from $70,000 per annum for entry-level positions to $135,000 per annum for senior roles. The average salary is around $110,000 per annum.

The epidemiology salary range varies across sectors, with government agencies, research institutions and consulting firms often offering higher compensation for specialised expertise. Leadership positions and involvement in impactful research projects can also lead to higher salaries.

According to Labour Market Insights, 25,700 Australians are currently employed as medical laboratory scientists, with a growth of 5.6% per annum forecast.

Epidemiology is more than just a paycheck. It's a fulfilling career where you make a difference in communities, prevent diseases and improve health outcomes. The intrinsic value of positively impacting public health extends far beyond monetary rewards.

The growing demand for skilled epidemiologists in Australia means excellent job prospects and room for career advancement. As the field expands, salaries are expected to remain competitive, reflecting the importance of the work.

How to become an epidemiologist

Embarking on a career as an epidemiologist in Australia is an exciting journey with a lasting impact on public health.

If you intend to study epidemiology full-time, a bachelor's degree will take four years, plus another two years for a master's degree.

The skills and personal characteristics you will need include curiosity, inductive reasoning, critical thinking, computer literacy, problem-solving, mathematical proficiency, an aptitude for research and analysis and the ability to work independently or as part of a team.

Follow these four steps to build a successful career in epidemiology:

1. Reflect on your career choice

Consider whether epidemiology aligns with your interests and values. Embrace the rewarding career while acknowledging the challenges and years of study required.

2. Complete an undergraduate degree

The typical entry point is a bachelor's degree in a relevant field like public health or health science. Epidemiology courses are not offered at an undergraduate level. Learning broad skills and knowledge in an undergraduate health course can put you in a position to complete a postgraduate epidemiology course.

3. Complete a postgraduate degree

Many aspiring epidemiologists choose to pursue postgraduate degrees, such as the University of Technology Sydney’s Master of Public Health or Victoria University’s Master of Public Health Major in Data Analytics. GlobalHealth Education offers a range of online public health courses to expand your knowledge and boost your career prospects. After completing your master's degree, consider becoming a member of the Australasian Epidemiological Association (AEA) to gain access to a fortnightly email bulletin with news and updates, attend an annual scientific meeting and participate in specialist interest groups.

The courses below are listed by qualification level, from lowest to highest.

Master of Public Health
Master of Public Health
The UTS Online Master of Public Health is designed for professionals who are passionate about creating positive change for population and community health, and are looking to advance their skills to gain a global perspective in public health. Students will develop specialist knowledge and skills that span health data, education and promotion, and graduate ready to develop public health programs at a local, national or global level. Offering a diverse range of electives, spanning data analytics, leadership and health services management, you’ll equip yourself with the advanced skills that are applicable to a multitude of health contexts. You’ll have the choice to select a general pathway or choose to major in data analytics, or sub-major in leadership, allowing you to tailor your studies to your career goals. Delivered 100% online, with part-time study, this course enables you to work full-time while developing a comprehensive understanding of public health theory and research to inform best practice standards in the evolving global environment. Immediately apply what you learn to make a greater impact in your current role and future-proof your career.  Students of this course have backgrounds in varying industries and may be specialists in fields such as nursing, psychology, optometry, sociology, physiotherapy, and exercise science, biomedical science, data analytics or communication in roles such as: Registered Nurse ICU Doctor Health Promotion Officer Lawyer Microbiologist Pharmacist  Sociologist  Paediatrician  Psychologist Pathologist Data Analyst Program Officer Occupational Therapist Journalist Marketing Specialist Public Relations Specialist  Research Assistant  Graphic Designer Physiotherapist
Master's 24 months 12 Units
Units
  • Foundations in Public Health + Indigenous Public Health
  • Global Health Systems + Planetary Health
  • Social Perspectives in Public Health
  • Fundamentals of Epidemiology
  • Non-communicable Disease
  • Communicable Disease
  • Fundamentals of Biostatistics + Fundamentals of Qualitative Research
  • Health Promotion
  • Plus Electives
Master of Public Health Specialising in Health Promotion
Master of Public Health Specialising in Health Promotion
Award-winning study model VU Online's award-winning postgraduate Block Model recognises the complexity of students' lives while giving a consistent, manageable and connected online learning experience. Earn your Master of Public Health faster than on-campus with our unique study model. No exams or textbooks to purchase The online units have been designed with a student-centred approach that spans across the overarching learning outcomes to the engaging activities and self-determined assessments. Support seven days and in the evenings VU Online provides you with the support you need, when you need it, during your course. Our support network has a single focus on ensuring you are entirely supported to succeed. VU Online’s Master of Public Health specialising in Health Promotion allows you to explore how effective health promotion works, to understand and act on factors that cause poor health and those that create and sustain good health. Within this specialisation, you will build an in-depth understanding of health policies, sociological implications and global health concerns, gaining the skills required to address contemporary health issues that affect both individuals and communities. You will acquire the skills to inspire people and communities to act with regard to their own health and create physical, social and economic environments that are supportive and encourage good health.
Master's 24 months 12 Units
Units
  • Foundations of Public Health
  • Epidemiology and Biostatistics 1
  • Public Health in Practice
  • Culture and Society in Public Health
  • Epidemiology and Biostatistics 2
  • Promoting Health in Policy
  • Public Health Program Management
  • Innovative and Evidence-Based Health Promotion
  • Social Media and Social Marketing Approaches to Health Promotion
  • Global Contexts of Health Promotion Practice with Diverse Populations
  • Professional Project
  • Plus Electives
Master of Public Health Majoring in Data Analytics
Master of Public Health Majoring in Data Analytics
The UTS Online Master of Public Health is designed for professionals who are passionate about creating positive change for population and community health, and are looking to advance their skills to gain a global perspective in public health. Students will develop specialist knowledge and skills that span health data, education and promotion, and graduate ready to develop public health programs at a local, national or global level. The Data Analytics major provides you with the critical knowledge needed by public health practitioners and health researchers concerning epidemiology, biostatistics, qualitative research and visual analytics. Studying these subjects will provide you with the necessary skills to effectively evaluate the performance of health systems. This course also provides the opportunity to specialise in health analytics at the graduate certificate level. Delivered 100% online with part-time study, this course enables you to work full-time while developing a comprehensive understanding of public health theory and research to inform best practice standards in the evolving global environment. Immediately apply what you learn to make a greater impact in your current role and future-proof your career. 
Master's 24 months 12 Units
Units
  • Foundations in Public Health + Indigenous Public Health
  • Global Health Systems + Planetary Health
  • Social Perspectives in Public Health
  • Fundamentals of Epidemiology
  • Non-communicable Disease
  • Communicable Disease
  • Fundamentals of Biostatistics + Fundamentals of Qualitative Research
  • Health Promotion
  • Advanced Biostatistics
  • Advanced Epidemiology
  • Data Visualisation and Visual Analytics
  • Plus Electives
Master of Public Health Specialising in Health Promotion
Master of Public Health Specialising in Health Promotion
Award-winning study model VU Online's award-winning postgraduate Block Model recognises the complexity of students' lives while giving a consistent, manageable and connected online learning experience. Earn your Master of Public Health faster than on-campus with our unique study model. No exams or textbooks to purchase The online units have been designed with a student-centred approach that spans across the overarching learning outcomes to the engaging activities and self-determined assessments. Support seven days and in the evenings VU Online provides you with the support you need, when you need it, during your course. Our support network has a single focus on ensuring you are entirely supported to succeed. VU Online’s Master of Public Health specialising in Health Promotion allows you to explore how effective health promotion works, to understand and act on factors that cause poor health and those that create and sustain good health. Within this specialisation, you will build an in-depth understanding of health policies, sociological implications and global health concerns, gaining the skills required to address contemporary health issues that affect both individuals and communities. You will acquire the skills to inspire people and communities to act with regard to their own health and create physical, social and economic environments that are supportive and encourage good health.
Master's 24 months 12 Units
Units
  • Foundations of Public Health
  • Epidemiology and Biostatistics 1
  • Public Health in Practice
  • Culture and Society in Public Health
  • Epidemiology and Biostatistics 2
  • Promoting Health in Policy
  • Public Health Program Management
  • Innovative and Evidence-Based Health Promotion
  • Social Media and Social Marketing Approaches to Health Promotion
  • Global Contexts of Health Promotion Practice with Diverse Populations
  • Professional Project
  • Plus Electives

4. Start applying for jobs

Use reputable sources like SEEK and Indeed to search for opportunities. Tailor your resume, join professional boards to expand your network and seek guidance from mentors to increase your employability.

Experienced epidemiologists can specialise in various fields including biostatistics, disaster prevention, nutrition, genetics, global health, neuroepidemiology, geriatrics and psychiatry.

Wrapping up

Becoming an epidemiologist is a rewarding journey that offers personal and professional growth opportunities. By reflecting on your career choice, gaining a solid education, acquiring practical experience, pursuing advanced education and actively seeking job opportunities, you can make a lasting impact on public health.

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