Published on in Vol 23, No 2 (2021): February
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/25525, first published
.
![Early Perceptions of COVID-19 Contact Tracing Apps in German-Speaking Countries: Comparative Mixed Methods Study Early Perceptions of COVID-19 Contact Tracing Apps in German-Speaking Countries: Comparative Mixed Methods Study](https://asset.jmir.pub/assets/dfc40e0c870f61b049449db7f3b97231.png 480w,https://asset.jmir.pub/assets/dfc40e0c870f61b049449db7f3b97231.png 960w,https://asset.jmir.pub/assets/dfc40e0c870f61b049449db7f3b97231.png 1920w,https://asset.jmir.pub/assets/dfc40e0c870f61b049449db7f3b97231.png 2500w)
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