Baltrusaitis K, Reed C, Sewalk K, Brownstein JS, et al. Health-care seeking behavior for respiratory illness among Flu Near You
participants in the United States during the 2015-16 through 2018-19 influenza
season. J Infect Dis 2020 Aug 6. pii: 5881614. doi: 10.1093.
PMID: 32761050