10 global health issues to track in 2021 Format 2020 was a devastating year for global health. A previously unknown virus raced around the world, rapidly emerging as one of its top killers, laying bare the inadequacies of health systems. Today, health services in all regions are struggling to both tackle COVID-19, and provide people with vital care. In another blow, the pandemic threatens to set back hard-won global health progress achieved over the past two decades - in fighting infectious diseases, for example, and improving maternal and child health. So in 2021, countries around the world will need to continue battle COVID-19 (albeit with the knowledge that effective tools are evolving). They will need to move swiftly to repair and reinforce their health systems so they can deliver these tools, and to address the key societal and environmental issues that result in some sections of the population suffering so much more than others.