This introduction to the course underscores its focus on mitigating the risk of catastrophic pandemics, a specific aspect of the complex and multidisciplinary field of biosecurity. It clarifies various interpretations of 'biosecurity', categorises different sources of pandemic risk, and underscores the need for collaboration across numerous disciplines and skill sets to effectively prevent pandemics. We also highlight the core values of the course - a scout mindset, healthy scepticism, active...