Surveillance of COVID-19 in the General Population Using an Online Questionnaire: Report From 18,161 Respondents in China.
Hongxing LuoYongchan LieFrits W PrinzenPublished in: JMIR public health and surveillance (2020)
This study shows the usefulness of an online questionnaire for the surveillance of outbreaks like COVID-19 by providing information about trends of the disease and aiding the identification of potential risk factors.