“…Older adults, who are more vulnerable to the adverse health effects of particulate matter and wildfire smoke exposure ( Liu et al, 2015 , 2015d eSouza et al, 2022 ), are also more vulnerable to COVID-19 and more likely to die as a result of infection ( Sharma, 2021 ; Shahid et al, 2020 ). However, stay-at-home orders during the pandemic, which were successful at reducing COVID-19 cases and deaths across the United States ( Fowler et al, 2021 ) reduced individual mobility ( Murray, 2021 ; Alexander and Karger, 2021 ), decreased physical activity, and increased recreational screen time ( Barr-Anderson et al, 2021 ), suggesting people spent more time indoors when under stay-at-home orders. Additionally, prior work in Colorado and elsewhere suggests that there may be important behavioral changes when wildfires are in close proximity.…”