During the Covid-19 pandemic, the benefits of sequencing infectious disease pathogens became more visible than ever before. The possibilities are huge: genomic sequencing is allowing scientists to unlock the secrets of disease prevention, helping dispel myths and stigma around disease outbreaks as well as allowing governments to act in real-time with targeted and often low-cost interventions.

Alisha speaks to Professor Christian Happi, Director of the African Centre of Excellence for Genomics of Infectious Diseases, about his pioneering use of the technology during the 2014 Ebola outbreak in Nigeria which identified the origin of the virus. They hear from the lead researcher who used sequencing to map a subsequent outbreak in Guinea, changing how healthcare workers understand the disease.