More than 100 million Americans are at higher risk for serious illness if they contract COVID-19, according to a new Kaiser Family Foundation (KFF) report. Wyatt Koma, BS, a researcher with the KFF Program on Medicare Policy, and colleagues calculate that 105.5 million people in the US are at high risk of serious illness if infected, which includes 29.2 million adults under the age of 60, because of an underlying medical condition, and 76.3 million adults at least 60 and older. One group particularly at risk is the 1.3 million people living in nursing homes in the US, the authors point out in the report released March 13. The risk by state, according to the KFF report, varies widely from 31% in Washington, DC, to 51% in West Virginia.