It's something the U.S. health system desperately needs. Jan 25th, 2021 iStock Of the many things that COVID-19 has made abundantly clear to us, surely one of them is a newfound realization that public health has become increasingly complex. Understanding the challenges to public health – that is, the task of guarding the well-being of the U.S. population – is essential now more than ever. As an engineer, design futurist and graduate program director, I have seen how COVID-19 has transformed how public health preparedness is viewed and understood. Some say the pandemic has delivered an urgency for a reimagining of public health.