The PG Certificate can be completed in one year - students are required to study either four (Clinical Trials, Epidemiology, Global Health Policy and Infectious Diseases) or six (Public Health) core modules (registration is for a maximum of five years. The PG Diploma and MSc degree take a minimum of two years and a maximum of five years to complete. Many students find that, due to changes in personal circumstances over the period of their registration, they are taking longer than they originally expected to finish their programme.